Home / 5,476.78-8,216.57-1,581.22

Finding the Fourth Proportional to 5,476.78, 8,216.57 and 1,581.22

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Solution

The fourth proportional to 5,476.78, 8,216.57 and 1,581.22 is: 2,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.78 : 8,216.57 = 1,581.22 : x
  2. Step 2: Convert to fraction form
    5,476.78/8,216.57 = 1,581.22/x
  3. Step 3: Cross multiply
    5,476.78x = 8,216.57 × 1,581.22
  4. Step 4: Simplify right side
    5,476.78x = 12,992,204.82
  5. Step 5: Solve for x
    x = 12,992,204.82/5,476.78
  6. Step 6: Final answer
    x = 2,372.23

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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.