Home / 5,391.24-7,438.12-4,394.80

Finding the Fourth Proportional to 5,391.24, 7,438.12 and 4,394.80

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Solution

The fourth proportional to 5,391.24, 7,438.12 and 4,394.80 is: 6,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.24 : 7,438.12 = 4,394.80 : x
  2. Step 2: Convert to fraction form
    5,391.24/7,438.12 = 4,394.80/x
  3. Step 3: Cross multiply
    5,391.24x = 7,438.12 × 4,394.80
  4. Step 4: Simplify right side
    5,391.24x = 32,689,049.78
  5. Step 5: Solve for x
    x = 32,689,049.78/5,391.24
  6. Step 6: Final answer
    x = 6,063.36

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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.