Home / 5,133.30-7,687.80-3,480.90

Finding the Fourth Proportional to 5,133.30, 7,687.80 and 3,480.90

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Solution

The fourth proportional to 5,133.30, 7,687.80 and 3,480.90 is: 5,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.30 : 7,687.80 = 3,480.90 : x
  2. Step 2: Convert to fraction form
    5,133.30/7,687.80 = 3,480.90/x
  3. Step 3: Cross multiply
    5,133.30x = 7,687.80 × 3,480.90
  4. Step 4: Simplify right side
    5,133.30x = 26,760,463.02
  5. Step 5: Solve for x
    x = 26,760,463.02/5,133.30
  6. Step 6: Final answer
    x = 5,213.11

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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.