Home / 2,578.67-3,869.63-1,263.23

Finding the Fourth Proportional to 2,578.67, 3,869.63 and 1,263.23

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Solution

The fourth proportional to 2,578.67, 3,869.63 and 1,263.23 is: 1,895.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.67 : 3,869.63 = 1,263.23 : x
  2. Step 2: Convert to fraction form
    2,578.67/3,869.63 = 1,263.23/x
  3. Step 3: Cross multiply
    2,578.67x = 3,869.63 × 1,263.23
  4. Step 4: Simplify right side
    2,578.67x = 4,888,207.04
  5. Step 5: Solve for x
    x = 4,888,207.04/2,578.67
  6. Step 6: Final answer
    x = 1,895.63

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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.