Home / 2,916.45-4,376.43-1,161.15

Finding the Fourth Proportional to 2,916.45, 4,376.43 and 1,161.15

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Solution

The fourth proportional to 2,916.45, 4,376.43 and 1,161.15 is: 1,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.45 : 4,376.43 = 1,161.15 : x
  2. Step 2: Convert to fraction form
    2,916.45/4,376.43 = 1,161.15/x
  3. Step 3: Cross multiply
    2,916.45x = 4,376.43 × 1,161.15
  4. Step 4: Simplify right side
    2,916.45x = 5,081,691.69
  5. Step 5: Solve for x
    x = 5,081,691.69/2,916.45
  6. Step 6: Final answer
    x = 1,742.42

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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.