Home / 3,915.60-5,404.12-2,237.36

Finding the Fourth Proportional to 3,915.60, 5,404.12 and 2,237.36

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Solution

The fourth proportional to 3,915.60, 5,404.12 and 2,237.36 is: 3,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.60 : 5,404.12 = 2,237.36 : x
  2. Step 2: Convert to fraction form
    3,915.60/5,404.12 = 2,237.36/x
  3. Step 3: Cross multiply
    3,915.60x = 5,404.12 × 2,237.36
  4. Step 4: Simplify right side
    3,915.60x = 12,090,961.92
  5. Step 5: Solve for x
    x = 12,090,961.92/3,915.60
  6. Step 6: Final answer
    x = 3,087.90

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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.