Home / 2,770.28-4,157.04-1,126.49

Finding the Fourth Proportional to 2,770.28, 4,157.04 and 1,126.49

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Solution

The fourth proportional to 2,770.28, 4,157.04 and 1,126.49 is: 1,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.28 : 4,157.04 = 1,126.49 : x
  2. Step 2: Convert to fraction form
    2,770.28/4,157.04 = 1,126.49/x
  3. Step 3: Cross multiply
    2,770.28x = 4,157.04 × 1,126.49
  4. Step 4: Simplify right side
    2,770.28x = 4,682,863.99
  5. Step 5: Solve for x
    x = 4,682,863.99/2,770.28
  6. Step 6: Final answer
    x = 1,690.39

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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.