Home / 1,126.59-1,554.53-629.18

Finding the Fourth Proportional to 1,126.59, 1,554.53 and 629.18

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Solution

The fourth proportional to 1,126.59, 1,554.53 and 629.18 is: 868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.59 : 1,554.53 = 629.18 : x
  2. Step 2: Convert to fraction form
    1,126.59/1,554.53 = 629.18/x
  3. Step 3: Cross multiply
    1,126.59x = 1,554.53 × 629.18
  4. Step 4: Simplify right side
    1,126.59x = 978,079.19
  5. Step 5: Solve for x
    x = 978,079.19/1,126.59
  6. Step 6: Final answer
    x = 868.18

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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.