Home / 4,309.02-6,463.40-1,387.89

Finding the Fourth Proportional to 4,309.02, 6,463.40 and 1,387.89

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Solution

The fourth proportional to 4,309.02, 6,463.40 and 1,387.89 is: 2,081.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.02 : 6,463.40 = 1,387.89 : x
  2. Step 2: Convert to fraction form
    4,309.02/6,463.40 = 1,387.89/x
  3. Step 3: Cross multiply
    4,309.02x = 6,463.40 × 1,387.89
  4. Step 4: Simplify right side
    4,309.02x = 8,970,481.29
  5. Step 5: Solve for x
    x = 8,970,481.29/4,309.02
  6. Step 6: Final answer
    x = 2,081.79

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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.