Home / 7,127.60-10,698.38-3,847.70

Finding the Fourth Proportional to 7,127.60, 10,698.38 and 3,847.70

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Solution

The fourth proportional to 7,127.60, 10,698.38 and 3,847.70 is: 5,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.60 : 10,698.38 = 3,847.70 : x
  2. Step 2: Convert to fraction form
    7,127.60/10,698.38 = 3,847.70/x
  3. Step 3: Cross multiply
    7,127.60x = 10,698.38 × 3,847.70
  4. Step 4: Simplify right side
    7,127.60x = 41,164,178.66
  5. Step 5: Solve for x
    x = 41,164,178.66/7,127.60
  6. Step 6: Final answer
    x = 5,775.33

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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.