Home / 4,770.28-7,143.18-3,122.02

Finding the Fourth Proportional to 4,770.28, 7,143.18 and 3,122.02

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Solution

The fourth proportional to 4,770.28, 7,143.18 and 3,122.02 is: 4,675.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.28 : 7,143.18 = 3,122.02 : x
  2. Step 2: Convert to fraction form
    4,770.28/7,143.18 = 3,122.02/x
  3. Step 3: Cross multiply
    4,770.28x = 7,143.18 × 3,122.02
  4. Step 4: Simplify right side
    4,770.28x = 22,301,150.82
  5. Step 5: Solve for x
    x = 22,301,150.82/4,770.28
  6. Step 6: Final answer
    x = 4,675.02

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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.