Home / 5,401.80-7,454.91-3,012.55

Finding the Fourth Proportional to 5,401.80, 7,454.91 and 3,012.55

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Solution

The fourth proportional to 5,401.80, 7,454.91 and 3,012.55 is: 4,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.80 : 7,454.91 = 3,012.55 : x
  2. Step 2: Convert to fraction form
    5,401.80/7,454.91 = 3,012.55/x
  3. Step 3: Cross multiply
    5,401.80x = 7,454.91 × 3,012.55
  4. Step 4: Simplify right side
    5,401.80x = 22,458,289.12
  5. Step 5: Solve for x
    x = 22,458,289.12/5,401.80
  6. Step 6: Final answer
    x = 4,157.56

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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.