Home / 3,888.20-5,817.54-2,158.04

Finding the Fourth Proportional to 3,888.20, 5,817.54 and 2,158.04

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Solution

The fourth proportional to 3,888.20, 5,817.54 and 2,158.04 is: 3,228.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.20 : 5,817.54 = 2,158.04 : x
  2. Step 2: Convert to fraction form
    3,888.20/5,817.54 = 2,158.04/x
  3. Step 3: Cross multiply
    3,888.20x = 5,817.54 × 2,158.04
  4. Step 4: Simplify right side
    3,888.20x = 12,554,484.02
  5. Step 5: Solve for x
    x = 12,554,484.02/3,888.20
  6. Step 6: Final answer
    x = 3,228.87

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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.