Home / 2,275.19-3,139.89-1,517.66

Finding the Fourth Proportional to 2,275.19, 3,139.89 and 1,517.66

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Solution

The fourth proportional to 2,275.19, 3,139.89 and 1,517.66 is: 2,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.19 : 3,139.89 = 1,517.66 : x
  2. Step 2: Convert to fraction form
    2,275.19/3,139.89 = 1,517.66/x
  3. Step 3: Cross multiply
    2,275.19x = 3,139.89 × 1,517.66
  4. Step 4: Simplify right side
    2,275.19x = 4,765,288.94
  5. Step 5: Solve for x
    x = 4,765,288.94/2,275.19
  6. Step 6: Final answer
    x = 2,094.46

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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.