Home / 2,859.20-4,286.10-2,567.60

Finding the Fourth Proportional to 2,859.20, 4,286.10 and 2,567.60

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Solution

The fourth proportional to 2,859.20, 4,286.10 and 2,567.60 is: 3,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.20 : 4,286.10 = 2,567.60 : x
  2. Step 2: Convert to fraction form
    2,859.20/4,286.10 = 2,567.60/x
  3. Step 3: Cross multiply
    2,859.20x = 4,286.10 × 2,567.60
  4. Step 4: Simplify right side
    2,859.20x = 11,004,990.36
  5. Step 5: Solve for x
    x = 11,004,990.36/2,859.20
  6. Step 6: Final answer
    x = 3,848.98

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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.