Home / 7,141.20-10,712.85-2,211.27

Finding the Fourth Proportional to 7,141.20, 10,712.85 and 2,211.27

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Solution

The fourth proportional to 7,141.20, 10,712.85 and 2,211.27 is: 3,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.20 : 10,712.85 = 2,211.27 : x
  2. Step 2: Convert to fraction form
    7,141.20/10,712.85 = 2,211.27/x
  3. Step 3: Cross multiply
    7,141.20x = 10,712.85 × 2,211.27
  4. Step 4: Simplify right side
    7,141.20x = 23,689,003.82
  5. Step 5: Solve for x
    x = 23,689,003.82/7,141.20
  6. Step 6: Final answer
    x = 3,317.23

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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.