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Finding the Fourth Proportional to 3,393.90, 4,683.20 and 1,901.74

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Solution

The fourth proportional to 3,393.90, 4,683.20 and 1,901.74 is: 2,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.90 : 4,683.20 = 1,901.74 : x
  2. Step 2: Convert to fraction form
    3,393.90/4,683.20 = 1,901.74/x
  3. Step 3: Cross multiply
    3,393.90x = 4,683.20 × 1,901.74
  4. Step 4: Simplify right side
    3,393.90x = 8,906,228.77
  5. Step 5: Solve for x
    x = 8,906,228.77/3,393.90
  6. Step 6: Final answer
    x = 2,624.19

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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.