Home / 1,126.26-1,554.14-628.82

Finding the Fourth Proportional to 1,126.26, 1,554.14 and 628.82

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Solution

The fourth proportional to 1,126.26, 1,554.14 and 628.82 is: 867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.26 : 1,554.14 = 628.82 : x
  2. Step 2: Convert to fraction form
    1,126.26/1,554.14 = 628.82/x
  3. Step 3: Cross multiply
    1,126.26x = 1,554.14 × 628.82
  4. Step 4: Simplify right side
    1,126.26x = 977,274.31
  5. Step 5: Solve for x
    x = 977,274.31/1,126.26
  6. Step 6: Final answer
    x = 867.72

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1.5x scale

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.