Home / 4,320.15-6,481.28-1,398.48

Finding the Fourth Proportional to 4,320.15, 6,481.28 and 1,398.48

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Solution

The fourth proportional to 4,320.15, 6,481.28 and 1,398.48 is: 2,098.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.15 : 6,481.28 = 1,398.48 : x
  2. Step 2: Convert to fraction form
    4,320.15/6,481.28 = 1,398.48/x
  3. Step 3: Cross multiply
    4,320.15x = 6,481.28 × 1,398.48
  4. Step 4: Simplify right side
    4,320.15x = 9,063,940.45
  5. Step 5: Solve for x
    x = 9,063,940.45/4,320.15
  6. Step 6: Final answer
    x = 2,098.06

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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.