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Finding the Fourth Proportional to 3,393.60, 4,682.76 and 1,901.40

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Solution

The fourth proportional to 3,393.60, 4,682.76 and 1,901.40 is: 2,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.60 : 4,682.76 = 1,901.40 : x
  2. Step 2: Convert to fraction form
    3,393.60/4,682.76 = 1,901.40/x
  3. Step 3: Cross multiply
    3,393.60x = 4,682.76 × 1,901.40
  4. Step 4: Simplify right side
    3,393.60x = 8,903,799.86
  5. Step 5: Solve for x
    x = 8,903,799.86/3,393.60
  6. Step 6: Final answer
    x = 2,623.70

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.