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Finding the Fourth Proportional to 2,928.48, 4,041 and 1,934.88

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Solution

The fourth proportional to 2,928.48, 4,041 and 1,934.88 is: 2,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.48 : 4,041 = 1,934.88 : x
  2. Step 2: Convert to fraction form
    2,928.48/4,041 = 1,934.88/x
  3. Step 3: Cross multiply
    2,928.48x = 4,041 × 1,934.88
  4. Step 4: Simplify right side
    2,928.48x = 7,818,850.08
  5. Step 5: Solve for x
    x = 7,818,850.08/2,928.48
  6. Step 6: Final answer
    x = 2,669.93

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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.