Home / 2,760.07-3,808.88-1,581.11

Finding the Fourth Proportional to 2,760.07, 3,808.88 and 1,581.11

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Solution

The fourth proportional to 2,760.07, 3,808.88 and 1,581.11 is: 2,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.07 : 3,808.88 = 1,581.11 : x
  2. Step 2: Convert to fraction form
    2,760.07/3,808.88 = 1,581.11/x
  3. Step 3: Cross multiply
    2,760.07x = 3,808.88 × 1,581.11
  4. Step 4: Simplify right side
    2,760.07x = 6,022,250.35
  5. Step 5: Solve for x
    x = 6,022,250.35/2,760.07
  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.