Home / 3,280.85-4,921.91-1,060.28

Finding the Fourth Proportional to 3,280.85, 4,921.91 and 1,060.28

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Solution

The fourth proportional to 3,280.85, 4,921.91 and 1,060.28 is: 1,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.85 : 4,921.91 = 1,060.28 : x
  2. Step 2: Convert to fraction form
    3,280.85/4,921.91 = 1,060.28/x
  3. Step 3: Cross multiply
    3,280.85x = 4,921.91 × 1,060.28
  4. Step 4: Simplify right side
    3,280.85x = 5,218,585.13
  5. Step 5: Solve for x
    x = 5,218,585.13/3,280.85
  6. Step 6: Final answer
    x = 1,590.62

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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.