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Finding the Fourth Proportional to 2,672.04, 4,007.90 and 1,029.40

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Solution

The fourth proportional to 2,672.04, 4,007.90 and 1,029.40 is: 1,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.04 : 4,007.90 = 1,029.40 : x
  2. Step 2: Convert to fraction form
    2,672.04/4,007.90 = 1,029.40/x
  3. Step 3: Cross multiply
    2,672.04x = 4,007.90 × 1,029.40
  4. Step 4: Simplify right side
    2,672.04x = 4,125,732.26
  5. Step 5: Solve for x
    x = 4,125,732.26/2,672.04
  6. Step 6: Final answer
    x = 1,544.04

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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.