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Finding the Fourth Proportional to 3,866.74, 5,800.07 and 1,400.63

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Solution

The fourth proportional to 3,866.74, 5,800.07 and 1,400.63 is: 2,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.74 : 5,800.07 = 1,400.63 : x
  2. Step 2: Convert to fraction form
    3,866.74/5,800.07 = 1,400.63/x
  3. Step 3: Cross multiply
    3,866.74x = 5,800.07 × 1,400.63
  4. Step 4: Simplify right side
    3,866.74x = 8,123,726.55
  5. Step 5: Solve for x
    x = 8,123,726.55/3,866.74
  6. Step 6: Final answer
    x = 2,100.93

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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.