Home / 5,916.39-8,161.71-3,790.20

Finding the Fourth Proportional to 5,916.39, 8,161.71 and 3,790.20

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Solution

The fourth proportional to 5,916.39, 8,161.71 and 3,790.20 is: 5,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,916.39 : 8,161.71 = 3,790.20 : x
  2. Step 2: Convert to fraction form
    5,916.39/8,161.71 = 3,790.20/x
  3. Step 3: Cross multiply
    5,916.39x = 8,161.71 × 3,790.20
  4. Step 4: Simplify right side
    5,916.39x = 30,934,513.24
  5. Step 5: Solve for x
    x = 30,934,513.24/5,916.39
  6. Step 6: Final answer
    x = 5,228.61

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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.