Home / 5,131.29-7,683.03-2,660.93

Finding the Fourth Proportional to 5,131.29, 7,683.03 and 2,660.93

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Solution

The fourth proportional to 5,131.29, 7,683.03 and 2,660.93 is: 3,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.29 : 7,683.03 = 2,660.93 : x
  2. Step 2: Convert to fraction form
    5,131.29/7,683.03 = 2,660.93/x
  3. Step 3: Cross multiply
    5,131.29x = 7,683.03 × 2,660.93
  4. Step 4: Simplify right side
    5,131.29x = 20,443,966.32
  5. Step 5: Solve for x
    x = 20,443,966.32/5,131.29
  6. Step 6: Final answer
    x = 3,984.18

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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.