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Finding the Fourth Proportional to 2,671.80, 3,686.92 and 1,492.96

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Solution

The fourth proportional to 2,671.80, 3,686.92 and 1,492.96 is: 2,060.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.80 : 3,686.92 = 1,492.96 : x
  2. Step 2: Convert to fraction form
    2,671.80/3,686.92 = 1,492.96/x
  3. Step 3: Cross multiply
    2,671.80x = 3,686.92 × 1,492.96
  4. Step 4: Simplify right side
    2,671.80x = 5,504,424.08
  5. Step 5: Solve for x
    x = 5,504,424.08/2,671.80
  6. Step 6: Final answer
    x = 2,060.19

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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.