Home / 2,866.28-4,295.36-1,221.16

Finding the Fourth Proportional to 2,866.28, 4,295.36 and 1,221.16

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Solution

The fourth proportional to 2,866.28, 4,295.36 and 1,221.16 is: 1,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.28 : 4,295.36 = 1,221.16 : x
  2. Step 2: Convert to fraction form
    2,866.28/4,295.36 = 1,221.16/x
  3. Step 3: Cross multiply
    2,866.28x = 4,295.36 × 1,221.16
  4. Step 4: Simplify right side
    2,866.28x = 5,245,321.82
  5. Step 5: Solve for x
    x = 5,245,321.82/2,866.28
  6. Step 6: Final answer
    x = 1,830.01

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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.