Home / 2,839.40-3,916.15-1,845

Finding the Fourth Proportional to 2,839.40, 3,916.15 and 1,845

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Solution

The fourth proportional to 2,839.40, 3,916.15 and 1,845 is: 2,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.40 : 3,916.15 = 1,845 : x
  2. Step 2: Convert to fraction form
    2,839.40/3,916.15 = 1,845/x
  3. Step 3: Cross multiply
    2,839.40x = 3,916.15 × 1,845
  4. Step 4: Simplify right side
    2,839.40x = 7,225,292.14
  5. Step 5: Solve for x
    x = 7,225,292.14/2,839.40
  6. Step 6: Final answer
    x = 2,544.66

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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.