Home / 6,989.44-10,490.64-3,529.12

Finding the Fourth Proportional to 6,989.44, 10,490.64 and 3,529.12

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Solution

The fourth proportional to 6,989.44, 10,490.64 and 3,529.12 is: 5,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.44 : 10,490.64 = 3,529.12 : x
  2. Step 2: Convert to fraction form
    6,989.44/10,490.64 = 3,529.12/x
  3. Step 3: Cross multiply
    6,989.44x = 10,490.64 × 3,529.12
  4. Step 4: Simplify right side
    6,989.44x = 37,022,727.44
  5. Step 5: Solve for x
    x = 37,022,727.44/6,989.44
  6. Step 6: Final answer
    x = 5,296.95

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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.