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Finding the Fourth Proportional to 2,405.66, 3,601.94 and 1,248.98

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Solution

The fourth proportional to 2,405.66, 3,601.94 and 1,248.98 is: 1,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.66 : 3,601.94 = 1,248.98 : x
  2. Step 2: Convert to fraction form
    2,405.66/3,601.94 = 1,248.98/x
  3. Step 3: Cross multiply
    2,405.66x = 3,601.94 × 1,248.98
  4. Step 4: Simplify right side
    2,405.66x = 4,498,726.77
  5. Step 5: Solve for x
    x = 4,498,726.77/2,405.66
  6. Step 6: Final answer
    x = 1,870.06

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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.