Home / 7,195.19-9,930.07-4,210.85

Finding the Fourth Proportional to 7,195.19, 9,930.07 and 4,210.85

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Solution

The fourth proportional to 7,195.19, 9,930.07 and 4,210.85 is: 5,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.19 : 9,930.07 = 4,210.85 : x
  2. Step 2: Convert to fraction form
    7,195.19/9,930.07 = 4,210.85/x
  3. Step 3: Cross multiply
    7,195.19x = 9,930.07 × 4,210.85
  4. Step 4: Simplify right side
    7,195.19x = 41,813,990.87
  5. Step 5: Solve for x
    x = 41,813,990.87/7,195.19
  6. Step 6: Final answer
    x = 5,811.38

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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.