Home / 2,571.28-3,857.32-928.23

Finding the Fourth Proportional to 2,571.28, 3,857.32 and 928.23

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Solution

The fourth proportional to 2,571.28, 3,857.32 and 928.23 is: 1,392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.28 : 3,857.32 = 928.23 : x
  2. Step 2: Convert to fraction form
    2,571.28/3,857.32 = 928.23/x
  3. Step 3: Cross multiply
    2,571.28x = 3,857.32 × 928.23
  4. Step 4: Simplify right side
    2,571.28x = 3,580,460.86
  5. Step 5: Solve for x
    x = 3,580,460.86/2,571.28
  6. Step 6: Final answer
    x = 1,392.48

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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.