Home / 2,760.18-3,808.89-1,581.36

Finding the Fourth Proportional to 2,760.18, 3,808.89 and 1,581.36

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Solution

The fourth proportional to 2,760.18, 3,808.89 and 1,581.36 is: 2,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.18 : 3,808.89 = 1,581.36 : x
  2. Step 2: Convert to fraction form
    2,760.18/3,808.89 = 1,581.36/x
  3. Step 3: Cross multiply
    2,760.18x = 3,808.89 × 1,581.36
  4. Step 4: Simplify right side
    2,760.18x = 6,023,226.29
  5. Step 5: Solve for x
    x = 6,023,226.29/2,760.18
  6. Step 6: Final answer
    x = 2,182.19

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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.