Home / 3,937.44-5,907.60-1,340.64

Finding the Fourth Proportional to 3,937.44, 5,907.60 and 1,340.64

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Solution

The fourth proportional to 3,937.44, 5,907.60 and 1,340.64 is: 2,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.44 : 5,907.60 = 1,340.64 : x
  2. Step 2: Convert to fraction form
    3,937.44/5,907.60 = 1,340.64/x
  3. Step 3: Cross multiply
    3,937.44x = 5,907.60 × 1,340.64
  4. Step 4: Simplify right side
    3,937.44x = 7,919,964.86
  5. Step 5: Solve for x
    x = 7,919,964.86/3,937.44
  6. Step 6: Final answer
    x = 2,011.45

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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.