Home / 3,987.10-5,980.66-1,793.27

Finding the Fourth Proportional to 3,987.10, 5,980.66 and 1,793.27

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Solution

The fourth proportional to 3,987.10, 5,980.66 and 1,793.27 is: 2,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.10 : 5,980.66 = 1,793.27 : x
  2. Step 2: Convert to fraction form
    3,987.10/5,980.66 = 1,793.27/x
  3. Step 3: Cross multiply
    3,987.10x = 5,980.66 × 1,793.27
  4. Step 4: Simplify right side
    3,987.10x = 10,724,926.20
  5. Step 5: Solve for x
    x = 10,724,926.20/3,987.10
  6. Step 6: Final answer
    x = 2,689.90

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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.