Home / 5,785.18-8,675.71-2,086.41

Finding the Fourth Proportional to 5,785.18, 8,675.71 and 2,086.41

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Solution

The fourth proportional to 5,785.18, 8,675.71 and 2,086.41 is: 3,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.18 : 8,675.71 = 2,086.41 : x
  2. Step 2: Convert to fraction form
    5,785.18/8,675.71 = 2,086.41/x
  3. Step 3: Cross multiply
    5,785.18x = 8,675.71 × 2,086.41
  4. Step 4: Simplify right side
    5,785.18x = 18,101,088.10
  5. Step 5: Solve for x
    x = 18,101,088.10/5,785.18
  6. Step 6: Final answer
    x = 3,128.87

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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.