Home / 2,581.12-3,871.95-1,709.29

Finding the Fourth Proportional to 2,581.12, 3,871.95 and 1,709.29

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Solution

The fourth proportional to 2,581.12, 3,871.95 and 1,709.29 is: 2,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.12 : 3,871.95 = 1,709.29 : x
  2. Step 2: Convert to fraction form
    2,581.12/3,871.95 = 1,709.29/x
  3. Step 3: Cross multiply
    2,581.12x = 3,871.95 × 1,709.29
  4. Step 4: Simplify right side
    2,581.12x = 6,618,285.42
  5. Step 5: Solve for x
    x = 6,618,285.42/2,581.12
  6. Step 6: Final answer
    x = 2,564.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.