Home / 3,721.90-5,582.85-3,165.10

Finding the Fourth Proportional to 3,721.90, 5,582.85 and 3,165.10

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Solution

The fourth proportional to 3,721.90, 5,582.85 and 3,165.10 is: 4,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.90 : 5,582.85 = 3,165.10 : x
  2. Step 2: Convert to fraction form
    3,721.90/5,582.85 = 3,165.10/x
  3. Step 3: Cross multiply
    3,721.90x = 5,582.85 × 3,165.10
  4. Step 4: Simplify right side
    3,721.90x = 17,670,278.54
  5. Step 5: Solve for x
    x = 17,670,278.54/3,721.90
  6. Step 6: Final answer
    x = 4,747.65

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Double scale
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Similar ratio
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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.