Home / 3,611.38-5,417.66-1,146.20

Finding the Fourth Proportional to 3,611.38, 5,417.66 and 1,146.20

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Solution

The fourth proportional to 3,611.38, 5,417.66 and 1,146.20 is: 1,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.38 : 5,417.66 = 1,146.20 : x
  2. Step 2: Convert to fraction form
    3,611.38/5,417.66 = 1,146.20/x
  3. Step 3: Cross multiply
    3,611.38x = 5,417.66 × 1,146.20
  4. Step 4: Simplify right side
    3,611.38x = 6,209,721.89
  5. Step 5: Solve for x
    x = 6,209,721.89/3,611.38
  6. Step 6: Final answer
    x = 1,719.49

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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.