Home / 2,720.67-4,079.38-1,077.99

Finding the Fourth Proportional to 2,720.67, 4,079.38 and 1,077.99

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Solution

The fourth proportional to 2,720.67, 4,079.38 and 1,077.99 is: 1,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.67 : 4,079.38 = 1,077.99 : x
  2. Step 2: Convert to fraction form
    2,720.67/4,079.38 = 1,077.99/x
  3. Step 3: Cross multiply
    2,720.67x = 4,079.38 × 1,077.99
  4. Step 4: Simplify right side
    2,720.67x = 4,397,530.85
  5. Step 5: Solve for x
    x = 4,397,530.85/2,720.67
  6. Step 6: Final answer
    x = 1,616.34

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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.