Home / 5,691.55-7,850.95-4,430.61

Finding the Fourth Proportional to 5,691.55, 7,850.95 and 4,430.61

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Solution

The fourth proportional to 5,691.55, 7,850.95 and 4,430.61 is: 6,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.55 : 7,850.95 = 4,430.61 : x
  2. Step 2: Convert to fraction form
    5,691.55/7,850.95 = 4,430.61/x
  3. Step 3: Cross multiply
    5,691.55x = 7,850.95 × 4,430.61
  4. Step 4: Simplify right side
    5,691.55x = 34,784,473.68
  5. Step 5: Solve for x
    x = 34,784,473.68/5,691.55
  6. Step 6: Final answer
    x = 6,111.60

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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.