Home / 3,397.81-4,689.25-1,981.93

Finding the Fourth Proportional to 3,397.81, 4,689.25 and 1,981.93

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Solution

The fourth proportional to 3,397.81, 4,689.25 and 1,981.93 is: 2,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.81 : 4,689.25 = 1,981.93 : x
  2. Step 2: Convert to fraction form
    3,397.81/4,689.25 = 1,981.93/x
  3. Step 3: Cross multiply
    3,397.81x = 4,689.25 × 1,981.93
  4. Step 4: Simplify right side
    3,397.81x = 9,293,765.25
  5. Step 5: Solve for x
    x = 9,293,765.25/3,397.81
  6. Step 6: Final answer
    x = 2,735.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.