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Finding the Fourth Proportional to 1,726.39, 2,586.07 and 800.66

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Solution

The fourth proportional to 1,726.39, 2,586.07 and 800.66 is: 1,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.39 : 2,586.07 = 800.66 : x
  2. Step 2: Convert to fraction form
    1,726.39/2,586.07 = 800.66/x
  3. Step 3: Cross multiply
    1,726.39x = 2,586.07 × 800.66
  4. Step 4: Simplify right side
    1,726.39x = 2,070,567.27
  5. Step 5: Solve for x
    x = 2,070,567.27/1,726.39
  6. Step 6: Final answer
    x = 1,199.36

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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.