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Finding the Fourth Proportional to 1,363.11, 1,879.65 and 1,252.14

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Solution

The fourth proportional to 1,363.11, 1,879.65 and 1,252.14 is: 1,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.11 : 1,879.65 = 1,252.14 : x
  2. Step 2: Convert to fraction form
    1,363.11/1,879.65 = 1,252.14/x
  3. Step 3: Cross multiply
    1,363.11x = 1,879.65 × 1,252.14
  4. Step 4: Simplify right side
    1,363.11x = 2,353,584.95
  5. Step 5: Solve for x
    x = 2,353,584.95/1,363.11
  6. Step 6: Final answer
    x = 1,726.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.