Home / 3,456.20-5,182.78-1,264.36

Finding the Fourth Proportional to 3,456.20, 5,182.78 and 1,264.36

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Solution

The fourth proportional to 3,456.20, 5,182.78 and 1,264.36 is: 1,895.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.20 : 5,182.78 = 1,264.36 : x
  2. Step 2: Convert to fraction form
    3,456.20/5,182.78 = 1,264.36/x
  3. Step 3: Cross multiply
    3,456.20x = 5,182.78 × 1,264.36
  4. Step 4: Simplify right side
    3,456.20x = 6,552,899.72
  5. Step 5: Solve for x
    x = 6,552,899.72/3,456.20
  6. Step 6: Final answer
    x = 1,895.98

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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.