Home / 7,142.45-10,691.24-4,908.22

Finding the Fourth Proportional to 7,142.45, 10,691.24 and 4,908.22

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Solution

The fourth proportional to 7,142.45, 10,691.24 and 4,908.22 is: 7,346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.45 : 10,691.24 = 4,908.22 : x
  2. Step 2: Convert to fraction form
    7,142.45/10,691.24 = 4,908.22/x
  3. Step 3: Cross multiply
    7,142.45x = 10,691.24 × 4,908.22
  4. Step 4: Simplify right side
    7,142.45x = 52,474,964.40
  5. Step 5: Solve for x
    x = 52,474,964.40/7,142.45
  6. Step 6: Final answer
    x = 7,346.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.