Home / 5,176.86-7,763.49-1,478.09

Finding the Fourth Proportional to 5,176.86, 7,763.49 and 1,478.09

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Solution

The fourth proportional to 5,176.86, 7,763.49 and 1,478.09 is: 2,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.86 : 7,763.49 = 1,478.09 : x
  2. Step 2: Convert to fraction form
    5,176.86/7,763.49 = 1,478.09/x
  3. Step 3: Cross multiply
    5,176.86x = 7,763.49 × 1,478.09
  4. Step 4: Simplify right side
    5,176.86x = 11,475,136.93
  5. Step 5: Solve for x
    x = 11,475,136.93/5,176.86
  6. Step 6: Final answer
    x = 2,216.62

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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.