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Finding the Fourth Proportional to 1,800.75, 2,701.41 and 631.08

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Solution

The fourth proportional to 1,800.75, 2,701.41 and 631.08 is: 946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.75 : 2,701.41 = 631.08 : x
  2. Step 2: Convert to fraction form
    1,800.75/2,701.41 = 631.08/x
  3. Step 3: Cross multiply
    1,800.75x = 2,701.41 × 631.08
  4. Step 4: Simplify right side
    1,800.75x = 1,704,805.82
  5. Step 5: Solve for x
    x = 1,704,805.82/1,800.75
  6. Step 6: Final answer
    x = 946.72

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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.