Home / 3,421.50-5,132.25-1,959.66

Finding the Fourth Proportional to 3,421.50, 5,132.25 and 1,959.66

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Solution

The fourth proportional to 3,421.50, 5,132.25 and 1,959.66 is: 2,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.50 : 5,132.25 = 1,959.66 : x
  2. Step 2: Convert to fraction form
    3,421.50/5,132.25 = 1,959.66/x
  3. Step 3: Cross multiply
    3,421.50x = 5,132.25 × 1,959.66
  4. Step 4: Simplify right side
    3,421.50x = 10,057,465.04
  5. Step 5: Solve for x
    x = 10,057,465.04/3,421.50
  6. Step 6: Final answer
    x = 2,939.49

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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.