Home / 2,720.86-4,081.35-1,542.44

Finding the Fourth Proportional to 2,720.86, 4,081.35 and 1,542.44

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Solution

The fourth proportional to 2,720.86, 4,081.35 and 1,542.44 is: 2,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.86 : 4,081.35 = 1,542.44 : x
  2. Step 2: Convert to fraction form
    2,720.86/4,081.35 = 1,542.44/x
  3. Step 3: Cross multiply
    2,720.86x = 4,081.35 × 1,542.44
  4. Step 4: Simplify right side
    2,720.86x = 6,295,237.49
  5. Step 5: Solve for x
    x = 6,295,237.49/2,720.86
  6. Step 6: Final answer
    x = 2,313.69

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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.