Home / 3,085.90-4,615.35-2,759.20

Finding the Fourth Proportional to 3,085.90, 4,615.35 and 2,759.20

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Solution

The fourth proportional to 3,085.90, 4,615.35 and 2,759.20 is: 4,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.90 : 4,615.35 = 2,759.20 : x
  2. Step 2: Convert to fraction form
    3,085.90/4,615.35 = 2,759.20/x
  3. Step 3: Cross multiply
    3,085.90x = 4,615.35 × 2,759.20
  4. Step 4: Simplify right side
    3,085.90x = 12,734,673.72
  5. Step 5: Solve for x
    x = 12,734,673.72/3,085.90
  6. Step 6: Final answer
    x = 4,126.73

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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.