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Finding the Fourth Proportional to 1,165.48, 1,750.62 and 1,126.60

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Solution

The fourth proportional to 1,165.48, 1,750.62 and 1,126.60 is: 1,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.48 : 1,750.62 = 1,126.60 : x
  2. Step 2: Convert to fraction form
    1,165.48/1,750.62 = 1,126.60/x
  3. Step 3: Cross multiply
    1,165.48x = 1,750.62 × 1,126.60
  4. Step 4: Simplify right side
    1,165.48x = 1,972,248.49
  5. Step 5: Solve for x
    x = 1,972,248.49/1,165.48
  6. Step 6: Final answer
    x = 1,692.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.