Home / 7,471.78-11,206.23-2,278.18

Finding the Fourth Proportional to 7,471.78, 11,206.23 and 2,278.18

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Solution

The fourth proportional to 7,471.78, 11,206.23 and 2,278.18 is: 3,416.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.78 : 11,206.23 = 2,278.18 : x
  2. Step 2: Convert to fraction form
    7,471.78/11,206.23 = 2,278.18/x
  3. Step 3: Cross multiply
    7,471.78x = 11,206.23 × 2,278.18
  4. Step 4: Simplify right side
    7,471.78x = 25,529,809.06
  5. Step 5: Solve for x
    x = 25,529,809.06/7,471.78
  6. Step 6: Final answer
    x = 3,416.83

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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.