Home / 1,131.16-1,696.68-351.13

Finding the Fourth Proportional to 1,131.16, 1,696.68 and 351.13

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Solution

The fourth proportional to 1,131.16, 1,696.68 and 351.13 is: 526.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.16 : 1,696.68 = 351.13 : x
  2. Step 2: Convert to fraction form
    1,131.16/1,696.68 = 351.13/x
  3. Step 3: Cross multiply
    1,131.16x = 1,696.68 × 351.13
  4. Step 4: Simplify right side
    1,131.16x = 595,755.25
  5. Step 5: Solve for x
    x = 595,755.25/1,131.16
  6. Step 6: Final answer
    x = 526.68

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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.