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Finding the Fourth Proportional to 1,751.05, 2,624.71 and 928.48

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Solution

The fourth proportional to 1,751.05, 2,624.71 and 928.48 is: 1,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.05 : 2,624.71 = 928.48 : x
  2. Step 2: Convert to fraction form
    1,751.05/2,624.71 = 928.48/x
  3. Step 3: Cross multiply
    1,751.05x = 2,624.71 × 928.48
  4. Step 4: Simplify right side
    1,751.05x = 2,436,990.74
  5. Step 5: Solve for x
    x = 2,436,990.74/1,751.05
  6. Step 6: Final answer
    x = 1,391.73

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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.