Home / 6,429.53-9,645.31-2,731.78

Finding the Fourth Proportional to 6,429.53, 9,645.31 and 2,731.78

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Solution

The fourth proportional to 6,429.53, 9,645.31 and 2,731.78 is: 4,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.53 : 9,645.31 = 2,731.78 : x
  2. Step 2: Convert to fraction form
    6,429.53/9,645.31 = 2,731.78/x
  3. Step 3: Cross multiply
    6,429.53x = 9,645.31 × 2,731.78
  4. Step 4: Simplify right side
    6,429.53x = 26,348,880.42
  5. Step 5: Solve for x
    x = 26,348,880.42/6,429.53
  6. Step 6: Final answer
    x = 4,098.10

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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.