Home / 3,931.47-5,892.35-1,984.23

Finding the Fourth Proportional to 3,931.47, 5,892.35 and 1,984.23

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Solution

The fourth proportional to 3,931.47, 5,892.35 and 1,984.23 is: 2,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.47 : 5,892.35 = 1,984.23 : x
  2. Step 2: Convert to fraction form
    3,931.47/5,892.35 = 1,984.23/x
  3. Step 3: Cross multiply
    3,931.47x = 5,892.35 × 1,984.23
  4. Step 4: Simplify right side
    3,931.47x = 11,691,767.72
  5. Step 5: Solve for x
    x = 11,691,767.72/3,931.47
  6. Step 6: Final answer
    x = 2,973.89

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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.