Home / 5,419.48-8,129.10-2,497.79

Finding the Fourth Proportional to 5,419.48, 8,129.10 and 2,497.79

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Solution

The fourth proportional to 5,419.48, 8,129.10 and 2,497.79 is: 3,746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.48 : 8,129.10 = 2,497.79 : x
  2. Step 2: Convert to fraction form
    5,419.48/8,129.10 = 2,497.79/x
  3. Step 3: Cross multiply
    5,419.48x = 8,129.10 × 2,497.79
  4. Step 4: Simplify right side
    5,419.48x = 20,304,784.69
  5. Step 5: Solve for x
    x = 20,304,784.69/5,419.48
  6. Step 6: Final answer
    x = 3,746.63

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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.