Home / 2,872.19-3,963.52-1,755.00

Finding the Fourth Proportional to 2,872.19, 3,963.52 and 1,755.00

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Solution

The fourth proportional to 2,872.19, 3,963.52 and 1,755.00 is: 2,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.19 : 3,963.52 = 1,755.00 : x
  2. Step 2: Convert to fraction form
    2,872.19/3,963.52 = 1,755.00/x
  3. Step 3: Cross multiply
    2,872.19x = 3,963.52 × 1,755.00
  4. Step 4: Simplify right side
    2,872.19x = 6,955,957.78
  5. Step 5: Solve for x
    x = 6,955,957.78/2,872.19
  6. Step 6: Final answer
    x = 2,421.83

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1.5x scale

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.