Home / 1,331.58-2,000.25-1,126.56

Finding the Fourth Proportional to 1,331.58, 2,000.25 and 1,126.56

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Solution

The fourth proportional to 1,331.58, 2,000.25 and 1,126.56 is: 1,692.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.58 : 2,000.25 = 1,126.56 : x
  2. Step 2: Convert to fraction form
    1,331.58/2,000.25 = 1,126.56/x
  3. Step 3: Cross multiply
    1,331.58x = 2,000.25 × 1,126.56
  4. Step 4: Simplify right side
    1,331.58x = 2,253,401.64
  5. Step 5: Solve for x
    x = 2,253,401.64/1,331.58
  6. Step 6: Final answer
    x = 1,692.28

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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.