Home / 3,174.78-4,380.63-1,777.26

Finding the Fourth Proportional to 3,174.78, 4,380.63 and 1,777.26

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Solution

The fourth proportional to 3,174.78, 4,380.63 and 1,777.26 is: 2,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.78 : 4,380.63 = 1,777.26 : x
  2. Step 2: Convert to fraction form
    3,174.78/4,380.63 = 1,777.26/x
  3. Step 3: Cross multiply
    3,174.78x = 4,380.63 × 1,777.26
  4. Step 4: Simplify right side
    3,174.78x = 7,785,518.47
  5. Step 5: Solve for x
    x = 7,785,518.47/3,174.78
  6. Step 6: Final answer
    x = 2,452.30

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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.