Home / 5,088.80-7,632.78-1,578.66

Finding the Fourth Proportional to 5,088.80, 7,632.78 and 1,578.66

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Solution

The fourth proportional to 5,088.80, 7,632.78 and 1,578.66 is: 2,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.80 : 7,632.78 = 1,578.66 : x
  2. Step 2: Convert to fraction form
    5,088.80/7,632.78 = 1,578.66/x
  3. Step 3: Cross multiply
    5,088.80x = 7,632.78 × 1,578.66
  4. Step 4: Simplify right side
    5,088.80x = 12,049,564.47
  5. Step 5: Solve for x
    x = 12,049,564.47/5,088.80
  6. Step 6: Final answer
    x = 2,367.86

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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.