Home / 5,618.55-7,753.47-3,100.86

Finding the Fourth Proportional to 5,618.55, 7,753.47 and 3,100.86

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Solution

The fourth proportional to 5,618.55, 7,753.47 and 3,100.86 is: 4,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.55 : 7,753.47 = 3,100.86 : x
  2. Step 2: Convert to fraction form
    5,618.55/7,753.47 = 3,100.86/x
  3. Step 3: Cross multiply
    5,618.55x = 7,753.47 × 3,100.86
  4. Step 4: Simplify right side
    5,618.55x = 24,042,424.98
  5. Step 5: Solve for x
    x = 24,042,424.98/5,618.55
  6. Step 6: Final answer
    x = 4,279.12

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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.