Home / 6,619.94-9,931.12-2,177.85

Finding the Fourth Proportional to 6,619.94, 9,931.12 and 2,177.85

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Solution

The fourth proportional to 6,619.94, 9,931.12 and 2,177.85 is: 3,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.94 : 9,931.12 = 2,177.85 : x
  2. Step 2: Convert to fraction form
    6,619.94/9,931.12 = 2,177.85/x
  3. Step 3: Cross multiply
    6,619.94x = 9,931.12 × 2,177.85
  4. Step 4: Simplify right side
    6,619.94x = 21,628,484.25
  5. Step 5: Solve for x
    x = 21,628,484.25/6,619.94
  6. Step 6: Final answer
    x = 3,267.17

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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.