Home / 4,244.40-6,390.90-3,985.20

Finding the Fourth Proportional to 4,244.40, 6,390.90 and 3,985.20

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Solution

The fourth proportional to 4,244.40, 6,390.90 and 3,985.20 is: 6,000.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,244.40 : 6,390.90 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    4,244.40/6,390.90 = 3,985.20/x
  3. Step 3: Cross multiply
    4,244.40x = 6,390.90 × 3,985.20
  4. Step 4: Simplify right side
    4,244.40x = 25,469,014.68
  5. Step 5: Solve for x
    x = 25,469,014.68/4,244.40
  6. Step 6: Final answer
    x = 6,000.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.