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Finding the Fourth Proportional to 4,774.52, 7,162.12 and 2,000.78

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Solution

The fourth proportional to 4,774.52, 7,162.12 and 2,000.78 is: 3,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.52 : 7,162.12 = 2,000.78 : x
  2. Step 2: Convert to fraction form
    4,774.52/7,162.12 = 2,000.78/x
  3. Step 3: Cross multiply
    4,774.52x = 7,162.12 × 2,000.78
  4. Step 4: Simplify right side
    4,774.52x = 14,329,849.03
  5. Step 5: Solve for x
    x = 14,329,849.03/4,774.52
  6. Step 6: Final answer
    x = 3,001.32

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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.