Home / 2,760.15-3,808.91-1,581.00

Finding the Fourth Proportional to 2,760.15, 3,808.91 and 1,581.00

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Solution

The fourth proportional to 2,760.15, 3,808.91 and 1,581.00 is: 2,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.15 : 3,808.91 = 1,581.00 : x
  2. Step 2: Convert to fraction form
    2,760.15/3,808.91 = 1,581.00/x
  3. Step 3: Cross multiply
    2,760.15x = 3,808.91 × 1,581.00
  4. Step 4: Simplify right side
    2,760.15x = 6,021,876.38
  5. Step 5: Solve for x
    x = 6,021,876.38/2,760.15
  6. Step 6: Final answer
    x = 2,181.72

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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.