Home / 3,122.28-4,678.56-2,509.92

Finding the Fourth Proportional to 3,122.28, 4,678.56 and 2,509.92

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Solution

The fourth proportional to 3,122.28, 4,678.56 and 2,509.92 is: 3,760.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.28 : 4,678.56 = 2,509.92 : x
  2. Step 2: Convert to fraction form
    3,122.28/4,678.56 = 2,509.92/x
  3. Step 3: Cross multiply
    3,122.28x = 4,678.56 × 2,509.92
  4. Step 4: Simplify right side
    3,122.28x = 11,742,811.32
  5. Step 5: Solve for x
    x = 11,742,811.32/3,122.28
  6. Step 6: Final answer
    x = 3,760.97

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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.