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Finding the Fourth Proportional to 1,581.01, 2,370.37 and 758.65

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Solution

The fourth proportional to 1,581.01, 2,370.37 and 758.65 is: 1,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.01 : 2,370.37 = 758.65 : x
  2. Step 2: Convert to fraction form
    1,581.01/2,370.37 = 758.65/x
  3. Step 3: Cross multiply
    1,581.01x = 2,370.37 × 758.65
  4. Step 4: Simplify right side
    1,581.01x = 1,798,267.45
  5. Step 5: Solve for x
    x = 1,798,267.45/1,581.01
  6. Step 6: Final answer
    x = 1,137.42

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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.