Home / 7,401.78-11,103.37-2,471.76

Finding the Fourth Proportional to 7,401.78, 11,103.37 and 2,471.76

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Solution

The fourth proportional to 7,401.78, 11,103.37 and 2,471.76 is: 3,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401.78 : 11,103.37 = 2,471.76 : x
  2. Step 2: Convert to fraction form
    7,401.78/11,103.37 = 2,471.76/x
  3. Step 3: Cross multiply
    7,401.78x = 11,103.37 × 2,471.76
  4. Step 4: Simplify right side
    7,401.78x = 27,444,859.65
  5. Step 5: Solve for x
    x = 27,444,859.65/7,401.78
  6. Step 6: Final answer
    x = 3,707.87

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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.