Home / 3,931.69-5,428.19-2,441.17

Finding the Fourth Proportional to 3,931.69, 5,428.19 and 2,441.17

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Solution

The fourth proportional to 3,931.69, 5,428.19 and 2,441.17 is: 3,370.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.69 : 5,428.19 = 2,441.17 : x
  2. Step 2: Convert to fraction form
    3,931.69/5,428.19 = 2,441.17/x
  3. Step 3: Cross multiply
    3,931.69x = 5,428.19 × 2,441.17
  4. Step 4: Simplify right side
    3,931.69x = 13,251,122.38
  5. Step 5: Solve for x
    x = 13,251,122.38/3,931.69
  6. Step 6: Final answer
    x = 3,370.34

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1.5x scale

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.