Home / 3,995.20-5,987.40-3,266.20

Finding the Fourth Proportional to 3,995.20, 5,987.40 and 3,266.20

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Solution

The fourth proportional to 3,995.20, 5,987.40 and 3,266.20 is: 4,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.20 : 5,987.40 = 3,266.20 : x
  2. Step 2: Convert to fraction form
    3,995.20/5,987.40 = 3,266.20/x
  3. Step 3: Cross multiply
    3,995.20x = 5,987.40 × 3,266.20
  4. Step 4: Simplify right side
    3,995.20x = 19,556,045.88
  5. Step 5: Solve for x
    x = 19,556,045.88/3,995.20
  6. Step 6: Final answer
    x = 4,894.89

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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.