Home / 7,284.28-10,928.04-2,089.76

Finding the Fourth Proportional to 7,284.28, 10,928.04 and 2,089.76

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Solution

The fourth proportional to 7,284.28, 10,928.04 and 2,089.76 is: 3,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.28 : 10,928.04 = 2,089.76 : x
  2. Step 2: Convert to fraction form
    7,284.28/10,928.04 = 2,089.76/x
  3. Step 3: Cross multiply
    7,284.28x = 10,928.04 × 2,089.76
  4. Step 4: Simplify right side
    7,284.28x = 22,836,980.87
  5. Step 5: Solve for x
    x = 22,836,980.87/7,284.28
  6. Step 6: Final answer
    x = 3,135.10

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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.