Home / 3,508.97-5,264.87-1,318.32

Finding the Fourth Proportional to 3,508.97, 5,264.87 and 1,318.32

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Solution

The fourth proportional to 3,508.97, 5,264.87 and 1,318.32 is: 1,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.97 : 5,264.87 = 1,318.32 : x
  2. Step 2: Convert to fraction form
    3,508.97/5,264.87 = 1,318.32/x
  3. Step 3: Cross multiply
    3,508.97x = 5,264.87 × 1,318.32
  4. Step 4: Simplify right side
    3,508.97x = 6,940,776.83
  5. Step 5: Solve for x
    x = 6,940,776.83/3,508.97
  6. Step 6: Final answer
    x = 1,978.01

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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.