Home / 3,174.18-4,761.47-982.72

Finding the Fourth Proportional to 3,174.18, 4,761.47 and 982.72

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Solution

The fourth proportional to 3,174.18, 4,761.47 and 982.72 is: 1,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.18 : 4,761.47 = 982.72 : x
  2. Step 2: Convert to fraction form
    3,174.18/4,761.47 = 982.72/x
  3. Step 3: Cross multiply
    3,174.18x = 4,761.47 × 982.72
  4. Step 4: Simplify right side
    3,174.18x = 4,679,191.80
  5. Step 5: Solve for x
    x = 4,679,191.80/3,174.18
  6. Step 6: Final answer
    x = 1,474.14

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1.5x scale

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.