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Finding the Fourth Proportional to 7,590.69, 11,387.09 and 2,659.20

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Solution

The fourth proportional to 7,590.69, 11,387.09 and 2,659.20 is: 3,989.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.69 : 11,387.09 = 2,659.20 : x
  2. Step 2: Convert to fraction form
    7,590.69/11,387.09 = 2,659.20/x
  3. Step 3: Cross multiply
    7,590.69x = 11,387.09 × 2,659.20
  4. Step 4: Simplify right side
    7,590.69x = 30,280,549.73
  5. Step 5: Solve for x
    x = 30,280,549.73/7,590.69
  6. Step 6: Final answer
    x = 3,989.17

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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.