Home / 3,915.26-5,403.51-2,236.91

Finding the Fourth Proportional to 3,915.26, 5,403.51 and 2,236.91

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Solution

The fourth proportional to 3,915.26, 5,403.51 and 2,236.91 is: 3,087.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.26 : 5,403.51 = 2,236.91 : x
  2. Step 2: Convert to fraction form
    3,915.26/5,403.51 = 2,236.91/x
  3. Step 3: Cross multiply
    3,915.26x = 5,403.51 × 2,236.91
  4. Step 4: Simplify right side
    3,915.26x = 12,087,138.54
  5. Step 5: Solve for x
    x = 12,087,138.54/3,915.26
  6. Step 6: Final answer
    x = 3,087.19

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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.