Home / 3,759.50-5,638.56-1,126.94

Finding the Fourth Proportional to 3,759.50, 5,638.56 and 1,126.94

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Solution

The fourth proportional to 3,759.50, 5,638.56 and 1,126.94 is: 1,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.50 : 5,638.56 = 1,126.94 : x
  2. Step 2: Convert to fraction form
    3,759.50/5,638.56 = 1,126.94/x
  3. Step 3: Cross multiply
    3,759.50x = 5,638.56 × 1,126.94
  4. Step 4: Simplify right side
    3,759.50x = 6,354,290.61
  5. Step 5: Solve for x
    x = 6,354,290.61/3,759.50
  6. Step 6: Final answer
    x = 1,690.20

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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.