Home / 5,789.20-7,988.69-3,399.27

Finding the Fourth Proportional to 5,789.20, 7,988.69 and 3,399.27

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Solution

The fourth proportional to 5,789.20, 7,988.69 and 3,399.27 is: 4,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.20 : 7,988.69 = 3,399.27 : x
  2. Step 2: Convert to fraction form
    5,789.20/7,988.69 = 3,399.27/x
  3. Step 3: Cross multiply
    5,789.20x = 7,988.69 × 3,399.27
  4. Step 4: Simplify right side
    5,789.20x = 27,155,714.26
  5. Step 5: Solve for x
    x = 27,155,714.26/5,789.20
  6. Step 6: Final answer
    x = 4,690.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.