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Finding the Fourth Proportional to 5,612.09, 7,748.80 and 4,499.15

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Solution

The fourth proportional to 5,612.09, 7,748.80 and 4,499.15 is: 6,212.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.09 : 7,748.80 = 4,499.15 : x
  2. Step 2: Convert to fraction form
    5,612.09/7,748.80 = 4,499.15/x
  3. Step 3: Cross multiply
    5,612.09x = 7,748.80 × 4,499.15
  4. Step 4: Simplify right side
    5,612.09x = 34,862,963.53
  5. Step 5: Solve for x
    x = 34,862,963.53/5,612.09
  6. Step 6: Final answer
    x = 6,212.12

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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.