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Finding the Fourth Proportional to 7,988.79, 11,024.87 and 4,452

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Solution

The fourth proportional to 7,988.79, 11,024.87 and 4,452 is: 6,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.79 : 11,024.87 = 4,452 : x
  2. Step 2: Convert to fraction form
    7,988.79/11,024.87 = 4,452/x
  3. Step 3: Cross multiply
    7,988.79x = 11,024.87 × 4,452
  4. Step 4: Simplify right side
    7,988.79x = 49,082,698.98
  5. Step 5: Solve for x
    x = 49,082,698.98/7,988.79
  6. Step 6: Final answer
    x = 6,143.95

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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.