Home / 2,578.73-3,868.10-630.93

Finding the Fourth Proportional to 2,578.73, 3,868.10 and 630.93

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Solution

The fourth proportional to 2,578.73, 3,868.10 and 630.93 is: 946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.73 : 3,868.10 = 630.93 : x
  2. Step 2: Convert to fraction form
    2,578.73/3,868.10 = 630.93/x
  3. Step 3: Cross multiply
    2,578.73x = 3,868.10 × 630.93
  4. Step 4: Simplify right side
    2,578.73x = 2,440,514.05
  5. Step 5: Solve for x
    x = 2,440,514.05/2,578.73
  6. Step 6: Final answer
    x = 946.40

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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.