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Finding the Fourth Proportional to 4,807.92, 7,206.30 and 2,728.92

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Solution

The fourth proportional to 4,807.92, 7,206.30 and 2,728.92 is: 4,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.92 : 7,206.30 = 2,728.92 : x
  2. Step 2: Convert to fraction form
    4,807.92/7,206.30 = 2,728.92/x
  3. Step 3: Cross multiply
    4,807.92x = 7,206.30 × 2,728.92
  4. Step 4: Simplify right side
    4,807.92x = 19,665,416.20
  5. Step 5: Solve for x
    x = 19,665,416.20/4,807.92
  6. Step 6: Final answer
    x = 4,090.21

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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.