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Finding the Fourth Proportional to 1,581, 2,367.45 and 1,169.52

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Solution

The fourth proportional to 1,581, 2,367.45 and 1,169.52 is: 1,751.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581 : 2,367.45 = 1,169.52 : x
  2. Step 2: Convert to fraction form
    1,581/2,367.45 = 1,169.52/x
  3. Step 3: Cross multiply
    1,581x = 2,367.45 × 1,169.52
  4. Step 4: Simplify right side
    1,581x = 2,768,780.12
  5. Step 5: Solve for x
    x = 2,768,780.12/1,581
  6. Step 6: Final answer
    x = 1,751.28

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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.