Home / 4,321.43-6,480.51-1,398.95

Finding the Fourth Proportional to 4,321.43, 6,480.51 and 1,398.95

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Solution

The fourth proportional to 4,321.43, 6,480.51 and 1,398.95 is: 2,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.43 : 6,480.51 = 1,398.95 : x
  2. Step 2: Convert to fraction form
    4,321.43/6,480.51 = 1,398.95/x
  3. Step 3: Cross multiply
    4,321.43x = 6,480.51 × 1,398.95
  4. Step 4: Simplify right side
    4,321.43x = 9,065,909.46
  5. Step 5: Solve for x
    x = 9,065,909.46/4,321.43
  6. Step 6: Final answer
    x = 2,097.90

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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.