Home / 3,407.28-4,702.52-1,915.29

Finding the Fourth Proportional to 3,407.28, 4,702.52 and 1,915.29

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Solution

The fourth proportional to 3,407.28, 4,702.52 and 1,915.29 is: 2,643.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.28 : 4,702.52 = 1,915.29 : x
  2. Step 2: Convert to fraction form
    3,407.28/4,702.52 = 1,915.29/x
  3. Step 3: Cross multiply
    3,407.28x = 4,702.52 × 1,915.29
  4. Step 4: Simplify right side
    3,407.28x = 9,006,694.32
  5. Step 5: Solve for x
    x = 9,006,694.32/3,407.28
  6. Step 6: Final answer
    x = 2,643.37

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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.