Home / 4,309.89-6,463.32-1,387.41

Finding the Fourth Proportional to 4,309.89, 6,463.32 and 1,387.41

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Solution

The fourth proportional to 4,309.89, 6,463.32 and 1,387.41 is: 2,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.89 : 6,463.32 = 1,387.41 : x
  2. Step 2: Convert to fraction form
    4,309.89/6,463.32 = 1,387.41/x
  3. Step 3: Cross multiply
    4,309.89x = 6,463.32 × 1,387.41
  4. Step 4: Simplify right side
    4,309.89x = 8,967,274.80
  5. Step 5: Solve for x
    x = 8,967,274.80/4,309.89
  6. Step 6: Final answer
    x = 2,080.63

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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.