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Finding the Fourth Proportional to 2,000.98, 3,001.50 and 702.50

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Solution

The fourth proportional to 2,000.98, 3,001.50 and 702.50 is: 1,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.98 : 3,001.50 = 702.50 : x
  2. Step 2: Convert to fraction form
    2,000.98/3,001.50 = 702.50/x
  3. Step 3: Cross multiply
    2,000.98x = 3,001.50 × 702.50
  4. Step 4: Simplify right side
    2,000.98x = 2,108,553.75
  5. Step 5: Solve for x
    x = 2,108,553.75/2,000.98
  6. Step 6: Final answer
    x = 1,053.76

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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.