Home / 3,639.28-5,014.64-2,799.92

Finding the Fourth Proportional to 3,639.28, 5,014.64 and 2,799.92

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Solution

The fourth proportional to 3,639.28, 5,014.64 and 2,799.92 is: 3,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.28 : 5,014.64 = 2,799.92 : x
  2. Step 2: Convert to fraction form
    3,639.28/5,014.64 = 2,799.92/x
  3. Step 3: Cross multiply
    3,639.28x = 5,014.64 × 2,799.92
  4. Step 4: Simplify right side
    3,639.28x = 14,040,590.83
  5. Step 5: Solve for x
    x = 14,040,590.83/3,639.28
  6. Step 6: Final answer
    x = 3,858.07

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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.