Home / 2,316.76-3,198-1,531.87

Finding the Fourth Proportional to 2,316.76, 3,198 and 1,531.87

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Solution

The fourth proportional to 2,316.76, 3,198 and 1,531.87 is: 2,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.76 : 3,198 = 1,531.87 : x
  2. Step 2: Convert to fraction form
    2,316.76/3,198 = 1,531.87/x
  3. Step 3: Cross multiply
    2,316.76x = 3,198 × 1,531.87
  4. Step 4: Simplify right side
    2,316.76x = 4,898,920.26
  5. Step 5: Solve for x
    x = 4,898,920.26/2,316.76
  6. Step 6: Final answer
    x = 2,114.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.