Home / 2,916.38-4,026.03-2,020.79

Finding the Fourth Proportional to 2,916.38, 4,026.03 and 2,020.79

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Solution

The fourth proportional to 2,916.38, 4,026.03 and 2,020.79 is: 2,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.38 : 4,026.03 = 2,020.79 : x
  2. Step 2: Convert to fraction form
    2,916.38/4,026.03 = 2,020.79/x
  3. Step 3: Cross multiply
    2,916.38x = 4,026.03 × 2,020.79
  4. Step 4: Simplify right side
    2,916.38x = 8,135,778.81
  5. Step 5: Solve for x
    x = 8,135,778.81/2,916.38
  6. Step 6: Final answer
    x = 2,789.69

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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.