Home / 7,385.43-10,191.63-4,028.20

Finding the Fourth Proportional to 7,385.43, 10,191.63 and 4,028.20

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Solution

The fourth proportional to 7,385.43, 10,191.63 and 4,028.20 is: 5,558.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.43 : 10,191.63 = 4,028.20 : x
  2. Step 2: Convert to fraction form
    7,385.43/10,191.63 = 4,028.20/x
  3. Step 3: Cross multiply
    7,385.43x = 10,191.63 × 4,028.20
  4. Step 4: Simplify right side
    7,385.43x = 41,053,923.97
  5. Step 5: Solve for x
    x = 41,053,923.97/7,385.43
  6. Step 6: Final answer
    x = 5,558.77

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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.