Home / 1,517.13-2,275.83-1,111.32

Finding the Fourth Proportional to 1,517.13, 2,275.83 and 1,111.32

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Solution

The fourth proportional to 1,517.13, 2,275.83 and 1,111.32 is: 1,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.13 : 2,275.83 = 1,111.32 : x
  2. Step 2: Convert to fraction form
    1,517.13/2,275.83 = 1,111.32/x
  3. Step 3: Cross multiply
    1,517.13x = 2,275.83 × 1,111.32
  4. Step 4: Simplify right side
    1,517.13x = 2,529,175.40
  5. Step 5: Solve for x
    x = 2,529,175.40/1,517.13
  6. Step 6: Final answer
    x = 1,667.08

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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.