Home / 3,916.81-5,876.18-1,143.51

Finding the Fourth Proportional to 3,916.81, 5,876.18 and 1,143.51

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Solution

The fourth proportional to 3,916.81, 5,876.18 and 1,143.51 is: 1,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.81 : 5,876.18 = 1,143.51 : x
  2. Step 2: Convert to fraction form
    3,916.81/5,876.18 = 1,143.51/x
  3. Step 3: Cross multiply
    3,916.81x = 5,876.18 × 1,143.51
  4. Step 4: Simplify right side
    3,916.81x = 6,719,470.59
  5. Step 5: Solve for x
    x = 6,719,470.59/3,916.81
  6. Step 6: Final answer
    x = 1,715.55

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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.