Home / 3,174.70-4,380.86-1,777.18

Finding the Fourth Proportional to 3,174.70, 4,380.86 and 1,777.18

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Solution

The fourth proportional to 3,174.70, 4,380.86 and 1,777.18 is: 2,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.70 : 4,380.86 = 1,777.18 : x
  2. Step 2: Convert to fraction form
    3,174.70/4,380.86 = 1,777.18/x
  3. Step 3: Cross multiply
    3,174.70x = 4,380.86 × 1,777.18
  4. Step 4: Simplify right side
    3,174.70x = 7,785,576.77
  5. Step 5: Solve for x
    x = 7,785,576.77/3,174.70
  6. Step 6: Final answer
    x = 2,452.38

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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.