Home / 6,989.94-10,491.39-3,529.62

Finding the Fourth Proportional to 6,989.94, 10,491.39 and 3,529.62

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Solution

The fourth proportional to 6,989.94, 10,491.39 and 3,529.62 is: 5,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.94 : 10,491.39 = 3,529.62 : x
  2. Step 2: Convert to fraction form
    6,989.94/10,491.39 = 3,529.62/x
  3. Step 3: Cross multiply
    6,989.94x = 10,491.39 × 3,529.62
  4. Step 4: Simplify right side
    6,989.94x = 37,030,619.97
  5. Step 5: Solve for x
    x = 37,030,619.97/6,989.94
  6. Step 6: Final answer
    x = 5,297.70

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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.