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Finding the Fourth Proportional to 2,799.92, 4,199.60 and 852.14

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Solution

The fourth proportional to 2,799.92, 4,199.60 and 852.14 is: 1,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.92 : 4,199.60 = 852.14 : x
  2. Step 2: Convert to fraction form
    2,799.92/4,199.60 = 852.14/x
  3. Step 3: Cross multiply
    2,799.92x = 4,199.60 × 852.14
  4. Step 4: Simplify right side
    2,799.92x = 3,578,621.89
  5. Step 5: Solve for x
    x = 3,578,621.89/2,799.92
  6. Step 6: Final answer
    x = 1,278.12

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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.