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Finding the Fourth Proportional to 3,499.92, 4,830.12 and 1,928.16

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Solution

The fourth proportional to 3,499.92, 4,830.12 and 1,928.16 is: 2,660.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,499.92 : 4,830.12 = 1,928.16 : x
  2. Step 2: Convert to fraction form
    3,499.92/4,830.12 = 1,928.16/x
  3. Step 3: Cross multiply
    3,499.92x = 4,830.12 × 1,928.16
  4. Step 4: Simplify right side
    3,499.92x = 9,313,244.18
  5. Step 5: Solve for x
    x = 9,313,244.18/3,499.92
  6. Step 6: Final answer
    x = 2,660.99

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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.