Home / 2,866.75-4,298.90-1,306.28

Finding the Fourth Proportional to 2,866.75, 4,298.90 and 1,306.28

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Solution

The fourth proportional to 2,866.75, 4,298.90 and 1,306.28 is: 1,958.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.75 : 4,298.90 = 1,306.28 : x
  2. Step 2: Convert to fraction form
    2,866.75/4,298.90 = 1,306.28/x
  3. Step 3: Cross multiply
    2,866.75x = 4,298.90 × 1,306.28
  4. Step 4: Simplify right side
    2,866.75x = 5,615,571.31
  5. Step 5: Solve for x
    x = 5,615,571.31/2,866.75
  6. Step 6: Final answer
    x = 1,958.86

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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.