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Finding the Fourth Proportional to 4,543.72, 6,775.82 and 4,502.20

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Solution

The fourth proportional to 4,543.72, 6,775.82 and 4,502.20 is: 6,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,543.72 : 6,775.82 = 4,502.20 : x
  2. Step 2: Convert to fraction form
    4,543.72/6,775.82 = 4,502.20/x
  3. Step 3: Cross multiply
    4,543.72x = 6,775.82 × 4,502.20
  4. Step 4: Simplify right side
    4,543.72x = 30,506,096.80
  5. Step 5: Solve for x
    x = 30,506,096.80/4,543.72
  6. Step 6: Final answer
    x = 6,713.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.