Home / 2,760.87-3,810.33-1,581.91

Finding the Fourth Proportional to 2,760.87, 3,810.33 and 1,581.91

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Solution

The fourth proportional to 2,760.87, 3,810.33 and 1,581.91 is: 2,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.87 : 3,810.33 = 1,581.91 : x
  2. Step 2: Convert to fraction form
    2,760.87/3,810.33 = 1,581.91/x
  3. Step 3: Cross multiply
    2,760.87x = 3,810.33 × 1,581.91
  4. Step 4: Simplify right side
    2,760.87x = 6,027,599.13
  5. Step 5: Solve for x
    x = 6,027,599.13/2,760.87
  6. Step 6: Final answer
    x = 2,183.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.