Home / 3,642.30-5,464.80-1,177.20

Finding the Fourth Proportional to 3,642.30, 5,464.80 and 1,177.20

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Solution

The fourth proportional to 3,642.30, 5,464.80 and 1,177.20 is: 1,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.30 : 5,464.80 = 1,177.20 : x
  2. Step 2: Convert to fraction form
    3,642.30/5,464.80 = 1,177.20/x
  3. Step 3: Cross multiply
    3,642.30x = 5,464.80 × 1,177.20
  4. Step 4: Simplify right side
    3,642.30x = 6,433,162.56
  5. Step 5: Solve for x
    x = 6,433,162.56/3,642.30
  6. Step 6: Final answer
    x = 1,766.24

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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.