Home / 5,375.20-7,416.72-3,137.20

Finding the Fourth Proportional to 5,375.20, 7,416.72 and 3,137.20

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Solution

The fourth proportional to 5,375.20, 7,416.72 and 3,137.20 is: 4,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.20 : 7,416.72 = 3,137.20 : x
  2. Step 2: Convert to fraction form
    5,375.20/7,416.72 = 3,137.20/x
  3. Step 3: Cross multiply
    5,375.20x = 7,416.72 × 3,137.20
  4. Step 4: Simplify right side
    5,375.20x = 23,267,733.98
  5. Step 5: Solve for x
    x = 23,267,733.98/5,375.20
  6. Step 6: Final answer
    x = 4,328.72

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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.