Home / 3,985.70-5,499.33-2,727.62

Finding the Fourth Proportional to 3,985.70, 5,499.33 and 2,727.62

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Solution

The fourth proportional to 3,985.70, 5,499.33 and 2,727.62 is: 3,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.70 : 5,499.33 = 2,727.62 : x
  2. Step 2: Convert to fraction form
    3,985.70/5,499.33 = 2,727.62/x
  3. Step 3: Cross multiply
    3,985.70x = 5,499.33 × 2,727.62
  4. Step 4: Simplify right side
    3,985.70x = 15,000,082.49
  5. Step 5: Solve for x
    x = 15,000,082.49/3,985.70
  6. Step 6: Final answer
    x = 3,763.48

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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.