Home / 7,520.47-11,280.22-2,590.21

Finding the Fourth Proportional to 7,520.47, 11,280.22 and 2,590.21

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Solution

The fourth proportional to 7,520.47, 11,280.22 and 2,590.21 is: 3,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.47 : 11,280.22 = 2,590.21 : x
  2. Step 2: Convert to fraction form
    7,520.47/11,280.22 = 2,590.21/x
  3. Step 3: Cross multiply
    7,520.47x = 11,280.22 × 2,590.21
  4. Step 4: Simplify right side
    7,520.47x = 29,218,138.65
  5. Step 5: Solve for x
    x = 29,218,138.65/7,520.47
  6. Step 6: Final answer
    x = 3,885.15

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Half scale
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Double scale
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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.