Home / 7,775.24-11,662.97-1,931.85

Finding the Fourth Proportional to 7,775.24, 11,662.97 and 1,931.85

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Solution

The fourth proportional to 7,775.24, 11,662.97 and 1,931.85 is: 2,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.24 : 11,662.97 = 1,931.85 : x
  2. Step 2: Convert to fraction form
    7,775.24/11,662.97 = 1,931.85/x
  3. Step 3: Cross multiply
    7,775.24x = 11,662.97 × 1,931.85
  4. Step 4: Simplify right side
    7,775.24x = 22,531,098.94
  5. Step 5: Solve for x
    x = 22,531,098.94/7,775.24
  6. Step 6: Final answer
    x = 2,897.80

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1.5x scale

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.