Home / 4,120.12-6,174.42-1,923.40

Finding the Fourth Proportional to 4,120.12, 6,174.42 and 1,923.40

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Solution

The fourth proportional to 4,120.12, 6,174.42 and 1,923.40 is: 2,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.12 : 6,174.42 = 1,923.40 : x
  2. Step 2: Convert to fraction form
    4,120.12/6,174.42 = 1,923.40/x
  3. Step 3: Cross multiply
    4,120.12x = 6,174.42 × 1,923.40
  4. Step 4: Simplify right side
    4,120.12x = 11,875,879.43
  5. Step 5: Solve for x
    x = 11,875,879.43/4,120.12
  6. Step 6: Final answer
    x = 2,882.41

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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.