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Finding the Fourth Proportional to 1,876.77, 2,590.79 and 1,248.41

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Solution

The fourth proportional to 1,876.77, 2,590.79 and 1,248.41 is: 1,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.77 : 2,590.79 = 1,248.41 : x
  2. Step 2: Convert to fraction form
    1,876.77/2,590.79 = 1,248.41/x
  3. Step 3: Cross multiply
    1,876.77x = 2,590.79 × 1,248.41
  4. Step 4: Simplify right side
    1,876.77x = 3,234,368.38
  5. Step 5: Solve for x
    x = 3,234,368.38/1,876.77
  6. Step 6: Final answer
    x = 1,723.37

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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.