Home / 5,537.52-7,642.20-3,180.42

Finding the Fourth Proportional to 5,537.52, 7,642.20 and 3,180.42

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Solution

The fourth proportional to 5,537.52, 7,642.20 and 3,180.42 is: 4,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,537.52 : 7,642.20 = 3,180.42 : x
  2. Step 2: Convert to fraction form
    5,537.52/7,642.20 = 3,180.42/x
  3. Step 3: Cross multiply
    5,537.52x = 7,642.20 × 3,180.42
  4. Step 4: Simplify right side
    5,537.52x = 24,305,405.72
  5. Step 5: Solve for x
    x = 24,305,405.72/5,537.52
  6. Step 6: Final answer
    x = 4,389.22

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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.