Home / 3,991.08-5,987.38-1,525.70

Finding the Fourth Proportional to 3,991.08, 5,987.38 and 1,525.70

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Solution

The fourth proportional to 3,991.08, 5,987.38 and 1,525.70 is: 2,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.08 : 5,987.38 = 1,525.70 : x
  2. Step 2: Convert to fraction form
    3,991.08/5,987.38 = 1,525.70/x
  3. Step 3: Cross multiply
    3,991.08x = 5,987.38 × 1,525.70
  4. Step 4: Simplify right side
    3,991.08x = 9,134,911.91
  5. Step 5: Solve for x
    x = 9,134,911.91/3,991.08
  6. Step 6: Final answer
    x = 2,288.83

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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.