Home / 5,538.52-7,642.85-3,180.66

Finding the Fourth Proportional to 5,538.52, 7,642.85 and 3,180.66

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Solution

The fourth proportional to 5,538.52, 7,642.85 and 3,180.66 is: 4,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.52 : 7,642.85 = 3,180.66 : x
  2. Step 2: Convert to fraction form
    5,538.52/7,642.85 = 3,180.66/x
  3. Step 3: Cross multiply
    5,538.52x = 7,642.85 × 3,180.66
  4. Step 4: Simplify right side
    5,538.52x = 24,309,315.23
  5. Step 5: Solve for x
    x = 24,309,315.23/5,538.52
  6. Step 6: Final answer
    x = 4,389.14

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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.