Home / 6,965.20-10,440.60-3,840.40

Finding the Fourth Proportional to 6,965.20, 10,440.60 and 3,840.40

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Solution

The fourth proportional to 6,965.20, 10,440.60 and 3,840.40 is: 5,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,965.20 : 10,440.60 = 3,840.40 : x
  2. Step 2: Convert to fraction form
    6,965.20/10,440.60 = 3,840.40/x
  3. Step 3: Cross multiply
    6,965.20x = 10,440.60 × 3,840.40
  4. Step 4: Simplify right side
    6,965.20x = 40,096,080.24
  5. Step 5: Solve for x
    x = 40,096,080.24/6,965.20
  6. Step 6: Final answer
    x = 5,756.63

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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.