Home / 5,476.28-8,215.82-1,580.72

Finding the Fourth Proportional to 5,476.28, 8,215.82 and 1,580.72

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Solution

The fourth proportional to 5,476.28, 8,215.82 and 1,580.72 is: 2,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.28 : 8,215.82 = 1,580.72 : x
  2. Step 2: Convert to fraction form
    5,476.28/8,215.82 = 1,580.72/x
  3. Step 3: Cross multiply
    5,476.28x = 8,215.82 × 1,580.72
  4. Step 4: Simplify right side
    5,476.28x = 12,986,910.99
  5. Step 5: Solve for x
    x = 12,986,910.99/5,476.28
  6. Step 6: Final answer
    x = 2,371.48

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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.