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Finding the Fourth Proportional to 1,169.74, 1,750.95 and 875.50

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Solution

The fourth proportional to 1,169.74, 1,750.95 and 875.50 is: 1,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.74 : 1,750.95 = 875.50 : x
  2. Step 2: Convert to fraction form
    1,169.74/1,750.95 = 875.50/x
  3. Step 3: Cross multiply
    1,169.74x = 1,750.95 × 875.50
  4. Step 4: Simplify right side
    1,169.74x = 1,532,956.73
  5. Step 5: Solve for x
    x = 1,532,956.73/1,169.74
  6. Step 6: Final answer
    x = 1,310.51

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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.