Home / 3,913.00-5,869.53-3,131.06

Finding the Fourth Proportional to 3,913.00, 5,869.53 and 3,131.06

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Solution

The fourth proportional to 3,913.00, 5,869.53 and 3,131.06 is: 4,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.00 : 5,869.53 = 3,131.06 : x
  2. Step 2: Convert to fraction form
    3,913.00/5,869.53 = 3,131.06/x
  3. Step 3: Cross multiply
    3,913.00x = 5,869.53 × 3,131.06
  4. Step 4: Simplify right side
    3,913.00x = 18,377,805.60
  5. Step 5: Solve for x
    x = 18,377,805.60/3,913.00
  6. Step 6: Final answer
    x = 4,696.61

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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.