Home / 1,126.30-1,554.21-706.63

Finding the Fourth Proportional to 1,126.30, 1,554.21 and 706.63

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Solution

The fourth proportional to 1,126.30, 1,554.21 and 706.63 is: 975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.30 : 1,554.21 = 706.63 : x
  2. Step 2: Convert to fraction form
    1,126.30/1,554.21 = 706.63/x
  3. Step 3: Cross multiply
    1,126.30x = 1,554.21 × 706.63
  4. Step 4: Simplify right side
    1,126.30x = 1,098,243.64
  5. Step 5: Solve for x
    x = 1,098,243.64/1,126.30
  6. Step 6: Final answer
    x = 975.09

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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.