Home / 3,521.91-5,280.87-1,180.65

Finding the Fourth Proportional to 3,521.91, 5,280.87 and 1,180.65

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Solution

The fourth proportional to 3,521.91, 5,280.87 and 1,180.65 is: 1,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.91 : 5,280.87 = 1,180.65 : x
  2. Step 2: Convert to fraction form
    3,521.91/5,280.87 = 1,180.65/x
  3. Step 3: Cross multiply
    3,521.91x = 5,280.87 × 1,180.65
  4. Step 4: Simplify right side
    3,521.91x = 6,234,859.17
  5. Step 5: Solve for x
    x = 6,234,859.17/3,521.91
  6. Step 6: Final answer
    x = 1,770.31

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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.