Home / 5,785.13-8,675.90-2,086.88

Finding the Fourth Proportional to 5,785.13, 8,675.90 and 2,086.88

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Solution

The fourth proportional to 5,785.13, 8,675.90 and 2,086.88 is: 3,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.13 : 8,675.90 = 2,086.88 : x
  2. Step 2: Convert to fraction form
    5,785.13/8,675.90 = 2,086.88/x
  3. Step 3: Cross multiply
    5,785.13x = 8,675.90 × 2,086.88
  4. Step 4: Simplify right side
    5,785.13x = 18,105,525.47
  5. Step 5: Solve for x
    x = 18,105,525.47/5,785.13
  6. Step 6: Final answer
    x = 3,129.67

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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.