Home / 4,320.95-6,481.46-1,399.28

Finding the Fourth Proportional to 4,320.95, 6,481.46 and 1,399.28

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Solution

The fourth proportional to 4,320.95, 6,481.46 and 1,399.28 is: 2,098.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.95 : 6,481.46 = 1,399.28 : x
  2. Step 2: Convert to fraction form
    4,320.95/6,481.46 = 1,399.28/x
  3. Step 3: Cross multiply
    4,320.95x = 6,481.46 × 1,399.28
  4. Step 4: Simplify right side
    4,320.95x = 9,069,348.44
  5. Step 5: Solve for x
    x = 9,069,348.44/4,320.95
  6. Step 6: Final answer
    x = 2,098.93

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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.