Home / 2,576.99-3,863.76-1,328.36

Finding the Fourth Proportional to 2,576.99, 3,863.76 and 1,328.36

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Solution

The fourth proportional to 2,576.99, 3,863.76 and 1,328.36 is: 1,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.99 : 3,863.76 = 1,328.36 : x
  2. Step 2: Convert to fraction form
    2,576.99/3,863.76 = 1,328.36/x
  3. Step 3: Cross multiply
    2,576.99x = 3,863.76 × 1,328.36
  4. Step 4: Simplify right side
    2,576.99x = 5,132,444.91
  5. Step 5: Solve for x
    x = 5,132,444.91/2,576.99
  6. Step 6: Final answer
    x = 1,991.65

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1.5x scale

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.