Home / 3,946.64-5,920.11-1,314.38

Finding the Fourth Proportional to 3,946.64, 5,920.11 and 1,314.38

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Solution

The fourth proportional to 3,946.64, 5,920.11 and 1,314.38 is: 1,971.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.64 : 5,920.11 = 1,314.38 : x
  2. Step 2: Convert to fraction form
    3,946.64/5,920.11 = 1,314.38/x
  3. Step 3: Cross multiply
    3,946.64x = 5,920.11 × 1,314.38
  4. Step 4: Simplify right side
    3,946.64x = 7,781,274.18
  5. Step 5: Solve for x
    x = 7,781,274.18/3,946.64
  6. Step 6: Final answer
    x = 1,971.62

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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.