Home / 2,760.10-3,808.65-1,581.22

Finding the Fourth Proportional to 2,760.10, 3,808.65 and 1,581.22

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Solution

The fourth proportional to 2,760.10, 3,808.65 and 1,581.22 is: 2,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.10 : 3,808.65 = 1,581.22 : x
  2. Step 2: Convert to fraction form
    2,760.10/3,808.65 = 1,581.22/x
  3. Step 3: Cross multiply
    2,760.10x = 3,808.65 × 1,581.22
  4. Step 4: Simplify right side
    2,760.10x = 6,022,313.55
  5. Step 5: Solve for x
    x = 6,022,313.55/2,760.10
  6. Step 6: Final answer
    x = 2,181.92

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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.