Home / 3,985.16-5,983.20-2,530.80

Finding the Fourth Proportional to 3,985.16, 5,983.20 and 2,530.80

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Solution

The fourth proportional to 3,985.16, 5,983.20 and 2,530.80 is: 3,799.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.16 : 5,983.20 = 2,530.80 : x
  2. Step 2: Convert to fraction form
    3,985.16/5,983.20 = 2,530.80/x
  3. Step 3: Cross multiply
    3,985.16x = 5,983.20 × 2,530.80
  4. Step 4: Simplify right side
    3,985.16x = 15,142,282.56
  5. Step 5: Solve for x
    x = 15,142,282.56/3,985.16
  6. Step 6: Final answer
    x = 3,799.67

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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.