Home / 2,145.29-3,217.32-1,104.95

Finding the Fourth Proportional to 2,145.29, 3,217.32 and 1,104.95

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Solution

The fourth proportional to 2,145.29, 3,217.32 and 1,104.95 is: 1,657.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.29 : 3,217.32 = 1,104.95 : x
  2. Step 2: Convert to fraction form
    2,145.29/3,217.32 = 1,104.95/x
  3. Step 3: Cross multiply
    2,145.29x = 3,217.32 × 1,104.95
  4. Step 4: Simplify right side
    2,145.29x = 3,554,985.78
  5. Step 5: Solve for x
    x = 3,554,985.78/2,145.29
  6. Step 6: Final answer
    x = 1,657.12

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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.