Home / 6,989.32-9,646.50-4,195

Finding the Fourth Proportional to 6,989.32, 9,646.50 and 4,195

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Solution

The fourth proportional to 6,989.32, 9,646.50 and 4,195 is: 5,789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.32 : 9,646.50 = 4,195 : x
  2. Step 2: Convert to fraction form
    6,989.32/9,646.50 = 4,195/x
  3. Step 3: Cross multiply
    6,989.32x = 9,646.50 × 4,195
  4. Step 4: Simplify right side
    6,989.32x = 40,467,067.50
  5. Step 5: Solve for x
    x = 40,467,067.50/6,989.32
  6. Step 6: Final answer
    x = 5,789.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.