Home / 4,990.92-7,487.16-2,218.56

Finding the Fourth Proportional to 4,990.92, 7,487.16 and 2,218.56

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Solution

The fourth proportional to 4,990.92, 7,487.16 and 2,218.56 is: 3,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.92 : 7,487.16 = 2,218.56 : x
  2. Step 2: Convert to fraction form
    4,990.92/7,487.16 = 2,218.56/x
  3. Step 3: Cross multiply
    4,990.92x = 7,487.16 × 2,218.56
  4. Step 4: Simplify right side
    4,990.92x = 16,610,713.69
  5. Step 5: Solve for x
    x = 16,610,713.69/4,990.92
  6. Step 6: Final answer
    x = 3,328.19

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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.