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Finding the Fourth Proportional to 7,502.12, 11,253.18 and 2,881.88

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Solution

The fourth proportional to 7,502.12, 11,253.18 and 2,881.88 is: 4,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.12 : 11,253.18 = 2,881.88 : x
  2. Step 2: Convert to fraction form
    7,502.12/11,253.18 = 2,881.88/x
  3. Step 3: Cross multiply
    7,502.12x = 11,253.18 × 2,881.88
  4. Step 4: Simplify right side
    7,502.12x = 32,430,314.38
  5. Step 5: Solve for x
    x = 32,430,314.38/7,502.12
  6. Step 6: Final answer
    x = 4,322.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.