Home / 3,915.10-5,402.53-2,236.28

Finding the Fourth Proportional to 3,915.10, 5,402.53 and 2,236.28

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Solution

The fourth proportional to 3,915.10, 5,402.53 and 2,236.28 is: 3,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.10 : 5,402.53 = 2,236.28 : x
  2. Step 2: Convert to fraction form
    3,915.10/5,402.53 = 2,236.28/x
  3. Step 3: Cross multiply
    3,915.10x = 5,402.53 × 2,236.28
  4. Step 4: Simplify right side
    3,915.10x = 12,081,545.57
  5. Step 5: Solve for x
    x = 12,081,545.57/3,915.10
  6. Step 6: Final answer
    x = 3,085.88

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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.