Home / 3,521.13-4,861.38-2,196.78

Finding the Fourth Proportional to 3,521.13, 4,861.38 and 2,196.78

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Solution

The fourth proportional to 3,521.13, 4,861.38 and 2,196.78 is: 3,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.13 : 4,861.38 = 2,196.78 : x
  2. Step 2: Convert to fraction form
    3,521.13/4,861.38 = 2,196.78/x
  3. Step 3: Cross multiply
    3,521.13x = 4,861.38 × 2,196.78
  4. Step 4: Simplify right side
    3,521.13x = 10,679,382.36
  5. Step 5: Solve for x
    x = 10,679,382.36/3,521.13
  6. Step 6: Final answer
    x = 3,032.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.