Home / 5,538.24-7,643.16-3,180.42

Finding the Fourth Proportional to 5,538.24, 7,643.16 and 3,180.42

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Solution

The fourth proportional to 5,538.24, 7,643.16 and 3,180.42 is: 4,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.24 : 7,643.16 = 3,180.42 : x
  2. Step 2: Convert to fraction form
    5,538.24/7,643.16 = 3,180.42/x
  3. Step 3: Cross multiply
    5,538.24x = 7,643.16 × 3,180.42
  4. Step 4: Simplify right side
    5,538.24x = 24,308,458.93
  5. Step 5: Solve for x
    x = 24,308,458.93/5,538.24
  6. Step 6: Final answer
    x = 4,389.20

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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.