Home / 5,176.80-7,766.37-1,889.91

Finding the Fourth Proportional to 5,176.80, 7,766.37 and 1,889.91

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Solution

The fourth proportional to 5,176.80, 7,766.37 and 1,889.91 is: 2,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.80 : 7,766.37 = 1,889.91 : x
  2. Step 2: Convert to fraction form
    5,176.80/7,766.37 = 1,889.91/x
  3. Step 3: Cross multiply
    5,176.80x = 7,766.37 × 1,889.91
  4. Step 4: Simplify right side
    5,176.80x = 14,677,740.33
  5. Step 5: Solve for x
    x = 14,677,740.33/5,176.80
  6. Step 6: Final answer
    x = 2,835.29

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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.