Home / 3,508.08-5,260.75-1,315.61

Finding the Fourth Proportional to 3,508.08, 5,260.75 and 1,315.61

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Solution

The fourth proportional to 3,508.08, 5,260.75 and 1,315.61 is: 1,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.08 : 5,260.75 = 1,315.61 : x
  2. Step 2: Convert to fraction form
    3,508.08/5,260.75 = 1,315.61/x
  3. Step 3: Cross multiply
    3,508.08x = 5,260.75 × 1,315.61
  4. Step 4: Simplify right side
    3,508.08x = 6,921,095.31
  5. Step 5: Solve for x
    x = 6,921,095.31/3,508.08
  6. Step 6: Final answer
    x = 1,972.90

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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.