Home / 1,578.06-2,367.07-537.78

Finding the Fourth Proportional to 1,578.06, 2,367.07 and 537.78

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Solution

The fourth proportional to 1,578.06, 2,367.07 and 537.78 is: 806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.06 : 2,367.07 = 537.78 : x
  2. Step 2: Convert to fraction form
    1,578.06/2,367.07 = 537.78/x
  3. Step 3: Cross multiply
    1,578.06x = 2,367.07 × 537.78
  4. Step 4: Simplify right side
    1,578.06x = 1,272,962.90
  5. Step 5: Solve for x
    x = 1,272,962.90/1,578.06
  6. Step 6: Final answer
    x = 806.66

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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.