Home / 2,517.45-3,473.69-1,398.28

Finding the Fourth Proportional to 2,517.45, 3,473.69 and 1,398.28

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Solution

The fourth proportional to 2,517.45, 3,473.69 and 1,398.28 is: 1,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.45 : 3,473.69 = 1,398.28 : x
  2. Step 2: Convert to fraction form
    2,517.45/3,473.69 = 1,398.28/x
  3. Step 3: Cross multiply
    2,517.45x = 3,473.69 × 1,398.28
  4. Step 4: Simplify right side
    2,517.45x = 4,857,191.25
  5. Step 5: Solve for x
    x = 4,857,191.25/2,517.45
  6. Step 6: Final answer
    x = 1,929.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.