Home / 3,940.02-5,909.49-1,342.62

Finding the Fourth Proportional to 3,940.02, 5,909.49 and 1,342.62

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Solution

The fourth proportional to 3,940.02, 5,909.49 and 1,342.62 is: 2,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.02 : 5,909.49 = 1,342.62 : x
  2. Step 2: Convert to fraction form
    3,940.02/5,909.49 = 1,342.62/x
  3. Step 3: Cross multiply
    3,940.02x = 5,909.49 × 1,342.62
  4. Step 4: Simplify right side
    3,940.02x = 7,934,199.46
  5. Step 5: Solve for x
    x = 7,934,199.46/3,940.02
  6. Step 6: Final answer
    x = 2,013.75

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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.