Home / 2,836.65-3,913-1,717.90

Finding the Fourth Proportional to 2,836.65, 3,913 and 1,717.90

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Solution

The fourth proportional to 2,836.65, 3,913 and 1,717.90 is: 2,369.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.65 : 3,913 = 1,717.90 : x
  2. Step 2: Convert to fraction form
    2,836.65/3,913 = 1,717.90/x
  3. Step 3: Cross multiply
    2,836.65x = 3,913 × 1,717.90
  4. Step 4: Simplify right side
    2,836.65x = 6,722,142.70
  5. Step 5: Solve for x
    x = 6,722,142.70/2,836.65
  6. Step 6: Final answer
    x = 2,369.75

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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.