Home / 3,631.52-5,010.80-2,118.88

Finding the Fourth Proportional to 3,631.52, 5,010.80 and 2,118.88

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Solution

The fourth proportional to 3,631.52, 5,010.80 and 2,118.88 is: 2,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.52 : 5,010.80 = 2,118.88 : x
  2. Step 2: Convert to fraction form
    3,631.52/5,010.80 = 2,118.88/x
  3. Step 3: Cross multiply
    3,631.52x = 5,010.80 × 2,118.88
  4. Step 4: Simplify right side
    3,631.52x = 10,617,283.90
  5. Step 5: Solve for x
    x = 10,617,283.90/3,631.52
  6. Step 6: Final answer
    x = 2,923.65

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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.