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Finding the Fourth Proportional to 6,612.58, 9,123.10 and 3,777.92

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Solution

The fourth proportional to 6,612.58, 9,123.10 and 3,777.92 is: 5,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.58 : 9,123.10 = 3,777.92 : x
  2. Step 2: Convert to fraction form
    6,612.58/9,123.10 = 3,777.92/x
  3. Step 3: Cross multiply
    6,612.58x = 9,123.10 × 3,777.92
  4. Step 4: Simplify right side
    6,612.58x = 34,466,341.95
  5. Step 5: Solve for x
    x = 34,466,341.95/6,612.58
  6. Step 6: Final answer
    x = 5,212.24

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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.