Home / 4,121.73-5,687.90-2,353.30

Finding the Fourth Proportional to 4,121.73, 5,687.90 and 2,353.30

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Solution

The fourth proportional to 4,121.73, 5,687.90 and 2,353.30 is: 3,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.73 : 5,687.90 = 2,353.30 : x
  2. Step 2: Convert to fraction form
    4,121.73/5,687.90 = 2,353.30/x
  3. Step 3: Cross multiply
    4,121.73x = 5,687.90 × 2,353.30
  4. Step 4: Simplify right side
    4,121.73x = 13,385,335.07
  5. Step 5: Solve for x
    x = 13,385,335.07/4,121.73
  6. Step 6: Final answer
    x = 3,247.50

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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.