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Finding the Fourth Proportional to 1,800.56, 2,700.96 and 630.62

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Solution

The fourth proportional to 1,800.56, 2,700.96 and 630.62 is: 945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.56 : 2,700.96 = 630.62 : x
  2. Step 2: Convert to fraction form
    1,800.56/2,700.96 = 630.62/x
  3. Step 3: Cross multiply
    1,800.56x = 2,700.96 × 630.62
  4. Step 4: Simplify right side
    1,800.56x = 1,703,279.40
  5. Step 5: Solve for x
    x = 1,703,279.40/1,800.56
  6. Step 6: Final answer
    x = 945.97

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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.