Home / 7,149.33-9,865.95-3,962.61

Finding the Fourth Proportional to 7,149.33, 9,865.95 and 3,962.61

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Solution

The fourth proportional to 7,149.33, 9,865.95 and 3,962.61 is: 5,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.33 : 9,865.95 = 3,962.61 : x
  2. Step 2: Convert to fraction form
    7,149.33/9,865.95 = 3,962.61/x
  3. Step 3: Cross multiply
    7,149.33x = 9,865.95 × 3,962.61
  4. Step 4: Simplify right side
    7,149.33x = 39,094,892.32
  5. Step 5: Solve for x
    x = 39,094,892.32/7,149.33
  6. Step 6: Final answer
    x = 5,468.33

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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.