Home / 2,576.99-3,863.21-1,115.35

Finding the Fourth Proportional to 2,576.99, 3,863.21 and 1,115.35

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Solution

The fourth proportional to 2,576.99, 3,863.21 and 1,115.35 is: 1,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.99 : 3,863.21 = 1,115.35 : x
  2. Step 2: Convert to fraction form
    2,576.99/3,863.21 = 1,115.35/x
  3. Step 3: Cross multiply
    2,576.99x = 3,863.21 × 1,115.35
  4. Step 4: Simplify right side
    2,576.99x = 4,308,831.27
  5. Step 5: Solve for x
    x = 4,308,831.27/2,576.99
  6. Step 6: Final answer
    x = 1,672.04

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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.