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Finding the Fourth Proportional to 1,126.01, 1,558.15 and 959.96

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Solution

The fourth proportional to 1,126.01, 1,558.15 and 959.96 is: 1,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.01 : 1,558.15 = 959.96 : x
  2. Step 2: Convert to fraction form
    1,126.01/1,558.15 = 959.96/x
  3. Step 3: Cross multiply
    1,126.01x = 1,558.15 × 959.96
  4. Step 4: Simplify right side
    1,126.01x = 1,495,751.48
  5. Step 5: Solve for x
    x = 1,495,751.48/1,126.01
  6. Step 6: Final answer
    x = 1,328.37

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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.