Home / 2,166.44-3,254.86-1,387.95

Finding the Fourth Proportional to 2,166.44, 3,254.86 and 1,387.95

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Solution

The fourth proportional to 2,166.44, 3,254.86 and 1,387.95 is: 2,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.44 : 3,254.86 = 1,387.95 : x
  2. Step 2: Convert to fraction form
    2,166.44/3,254.86 = 1,387.95/x
  3. Step 3: Cross multiply
    2,166.44x = 3,254.86 × 1,387.95
  4. Step 4: Simplify right side
    2,166.44x = 4,517,579.47
  5. Step 5: Solve for x
    x = 4,517,579.47/2,166.44
  6. Step 6: Final answer
    x = 2,085.25

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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.