Home / 2,772.90-4,159.35-2,652.95

Finding the Fourth Proportional to 2,772.90, 4,159.35 and 2,652.95

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Solution

The fourth proportional to 2,772.90, 4,159.35 and 2,652.95 is: 3,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.90 : 4,159.35 = 2,652.95 : x
  2. Step 2: Convert to fraction form
    2,772.90/4,159.35 = 2,652.95/x
  3. Step 3: Cross multiply
    2,772.90x = 4,159.35 × 2,652.95
  4. Step 4: Simplify right side
    2,772.90x = 11,034,557.98
  5. Step 5: Solve for x
    x = 11,034,557.98/2,772.90
  6. Step 6: Final answer
    x = 3,979.43

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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.