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Finding the Fourth Proportional to 3,393.40, 4,682.53 and 1,901.47

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Solution

The fourth proportional to 3,393.40, 4,682.53 and 1,901.47 is: 2,623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.40 : 4,682.53 = 1,901.47 : x
  2. Step 2: Convert to fraction form
    3,393.40/4,682.53 = 1,901.47/x
  3. Step 3: Cross multiply
    3,393.40x = 4,682.53 × 1,901.47
  4. Step 4: Simplify right side
    3,393.40x = 8,903,690.32
  5. Step 5: Solve for x
    x = 8,903,690.32/3,393.40
  6. Step 6: Final answer
    x = 2,623.83

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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.