Home / 7,218.92-10,828.96-2,222.40

Finding the Fourth Proportional to 7,218.92, 10,828.96 and 2,222.40

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Solution

The fourth proportional to 7,218.92, 10,828.96 and 2,222.40 is: 3,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.92 : 10,828.96 = 2,222.40 : x
  2. Step 2: Convert to fraction form
    7,218.92/10,828.96 = 2,222.40/x
  3. Step 3: Cross multiply
    7,218.92x = 10,828.96 × 2,222.40
  4. Step 4: Simplify right side
    7,218.92x = 24,066,280.70
  5. Step 5: Solve for x
    x = 24,066,280.70/7,218.92
  6. Step 6: Final answer
    x = 3,333.78

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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.