Home / 5,476.68-8,213.40-1,581.12

Finding the Fourth Proportional to 5,476.68, 8,213.40 and 1,581.12

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Solution

The fourth proportional to 5,476.68, 8,213.40 and 1,581.12 is: 2,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.68 : 8,213.40 = 1,581.12 : x
  2. Step 2: Convert to fraction form
    5,476.68/8,213.40 = 1,581.12/x
  3. Step 3: Cross multiply
    5,476.68x = 8,213.40 × 1,581.12
  4. Step 4: Simplify right side
    5,476.68x = 12,986,371.01
  5. Step 5: Solve for x
    x = 12,986,371.01/5,476.68
  6. Step 6: Final answer
    x = 2,371.21

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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.