Home / 5,149.72-7,724.51-1,254.16

Finding the Fourth Proportional to 5,149.72, 7,724.51 and 1,254.16

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Solution

The fourth proportional to 5,149.72, 7,724.51 and 1,254.16 is: 1,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.72 : 7,724.51 = 1,254.16 : x
  2. Step 2: Convert to fraction form
    5,149.72/7,724.51 = 1,254.16/x
  3. Step 3: Cross multiply
    5,149.72x = 7,724.51 × 1,254.16
  4. Step 4: Simplify right side
    5,149.72x = 9,687,771.46
  5. Step 5: Solve for x
    x = 9,687,771.46/5,149.72
  6. Step 6: Final answer
    x = 1,881.22

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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.