Home / 7,311.88-10,074.72-4,949.92

Finding the Fourth Proportional to 7,311.88, 10,074.72 and 4,949.92

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Solution

The fourth proportional to 7,311.88, 10,074.72 and 4,949.92 is: 6,820.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.88 : 10,074.72 = 4,949.92 : x
  2. Step 2: Convert to fraction form
    7,311.88/10,074.72 = 4,949.92/x
  3. Step 3: Cross multiply
    7,311.88x = 10,074.72 × 4,949.92
  4. Step 4: Simplify right side
    7,311.88x = 49,869,058.02
  5. Step 5: Solve for x
    x = 49,869,058.02/7,311.88
  6. Step 6: Final answer
    x = 6,820.28

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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.