Home / 2,726.60-4,084.16-1,985.72

Finding the Fourth Proportional to 2,726.60, 4,084.16 and 1,985.72

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Solution

The fourth proportional to 2,726.60, 4,084.16 and 1,985.72 is: 2,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,726.60 : 4,084.16 = 1,985.72 : x
  2. Step 2: Convert to fraction form
    2,726.60/4,084.16 = 1,985.72/x
  3. Step 3: Cross multiply
    2,726.60x = 4,084.16 × 1,985.72
  4. Step 4: Simplify right side
    2,726.60x = 8,109,967.85
  5. Step 5: Solve for x
    x = 8,109,967.85/2,726.60
  6. Step 6: Final answer
    x = 2,974.39

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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.