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Finding the Fourth Proportional to 2,029.18, 3,044.12 and 642.49

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Solution

The fourth proportional to 2,029.18, 3,044.12 and 642.49 is: 963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.18 : 3,044.12 = 642.49 : x
  2. Step 2: Convert to fraction form
    2,029.18/3,044.12 = 642.49/x
  3. Step 3: Cross multiply
    2,029.18x = 3,044.12 × 642.49
  4. Step 4: Simplify right side
    2,029.18x = 1,955,817.25
  5. Step 5: Solve for x
    x = 1,955,817.25/2,029.18
  6. Step 6: Final answer
    x = 963.85

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1.5x scale

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.