Home / 1,126.45-1,554.44-629.07

Finding the Fourth Proportional to 1,126.45, 1,554.44 and 629.07

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Solution

The fourth proportional to 1,126.45, 1,554.44 and 629.07 is: 868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.45 : 1,554.44 = 629.07 : x
  2. Step 2: Convert to fraction form
    1,126.45/1,554.44 = 629.07/x
  3. Step 3: Cross multiply
    1,126.45x = 1,554.44 × 629.07
  4. Step 4: Simplify right side
    1,126.45x = 977,851.57
  5. Step 5: Solve for x
    x = 977,851.57/1,126.45
  6. Step 6: Final answer
    x = 868.08

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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.