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Finding the Fourth Proportional to 2,029.46, 3,044.57 and 642.43

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Solution

The fourth proportional to 2,029.46, 3,044.57 and 642.43 is: 963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.46 : 3,044.57 = 642.43 : x
  2. Step 2: Convert to fraction form
    2,029.46/3,044.57 = 642.43/x
  3. Step 3: Cross multiply
    2,029.46x = 3,044.57 × 642.43
  4. Step 4: Simplify right side
    2,029.46x = 1,955,910.19
  5. Step 5: Solve for x
    x = 1,955,910.19/2,029.46
  6. Step 6: Final answer
    x = 963.76

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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.