Home / 7,198.08-9,931.90-4,213.33

Finding the Fourth Proportional to 7,198.08, 9,931.90 and 4,213.33

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Solution

The fourth proportional to 7,198.08, 9,931.90 and 4,213.33 is: 5,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.08 : 9,931.90 = 4,213.33 : x
  2. Step 2: Convert to fraction form
    7,198.08/9,931.90 = 4,213.33/x
  3. Step 3: Cross multiply
    7,198.08x = 9,931.90 × 4,213.33
  4. Step 4: Simplify right side
    7,198.08x = 41,846,400.63
  5. Step 5: Solve for x
    x = 41,846,400.63/7,198.08
  6. Step 6: Final answer
    x = 5,813.55

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1.5x scale

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.