Home / 1,131.36-1,694.12-948.28

Finding the Fourth Proportional to 1,131.36, 1,694.12 and 948.28

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Solution

The fourth proportional to 1,131.36, 1,694.12 and 948.28 is: 1,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.36 : 1,694.12 = 948.28 : x
  2. Step 2: Convert to fraction form
    1,131.36/1,694.12 = 948.28/x
  3. Step 3: Cross multiply
    1,131.36x = 1,694.12 × 948.28
  4. Step 4: Simplify right side
    1,131.36x = 1,606,500.11
  5. Step 5: Solve for x
    x = 1,606,500.11/1,131.36
  6. Step 6: Final answer
    x = 1,419.97

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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.