Home / 5,119.17-7,677.10-1,998.41

Finding the Fourth Proportional to 5,119.17, 7,677.10 and 1,998.41

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Solution

The fourth proportional to 5,119.17, 7,677.10 and 1,998.41 is: 2,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.17 : 7,677.10 = 1,998.41 : x
  2. Step 2: Convert to fraction form
    5,119.17/7,677.10 = 1,998.41/x
  3. Step 3: Cross multiply
    5,119.17x = 7,677.10 × 1,998.41
  4. Step 4: Simplify right side
    5,119.17x = 15,341,993.41
  5. Step 5: Solve for x
    x = 15,341,993.41/5,119.17
  6. Step 6: Final answer
    x = 2,996.97

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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.