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Finding the Fourth Proportional to 1,550.90, 2,325.86 and 510.66

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Solution

The fourth proportional to 1,550.90, 2,325.86 and 510.66 is: 765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.90 : 2,325.86 = 510.66 : x
  2. Step 2: Convert to fraction form
    1,550.90/2,325.86 = 510.66/x
  3. Step 3: Cross multiply
    1,550.90x = 2,325.86 × 510.66
  4. Step 4: Simplify right side
    1,550.90x = 1,187,723.67
  5. Step 5: Solve for x
    x = 1,187,723.67/1,550.90
  6. Step 6: Final answer
    x = 765.83

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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.