Home / 5,189.86-7,785.27-2,069.11

Finding the Fourth Proportional to 5,189.86, 7,785.27 and 2,069.11

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Solution

The fourth proportional to 5,189.86, 7,785.27 and 2,069.11 is: 3,103.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.86 : 7,785.27 = 2,069.11 : x
  2. Step 2: Convert to fraction form
    5,189.86/7,785.27 = 2,069.11/x
  3. Step 3: Cross multiply
    5,189.86x = 7,785.27 × 2,069.11
  4. Step 4: Simplify right side
    5,189.86x = 16,108,580.01
  5. Step 5: Solve for x
    x = 16,108,580.01/5,189.86
  6. Step 6: Final answer
    x = 3,103.86

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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.