Home / 2,916.91-4,028.18-2,077.65

Finding the Fourth Proportional to 2,916.91, 4,028.18 and 2,077.65

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Solution

The fourth proportional to 2,916.91, 4,028.18 and 2,077.65 is: 2,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.91 : 4,028.18 = 2,077.65 : x
  2. Step 2: Convert to fraction form
    2,916.91/4,028.18 = 2,077.65/x
  3. Step 3: Cross multiply
    2,916.91x = 4,028.18 × 2,077.65
  4. Step 4: Simplify right side
    2,916.91x = 8,369,149.48
  5. Step 5: Solve for x
    x = 8,369,149.48/2,916.91
  6. Step 6: Final answer
    x = 2,869.18

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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.