Home / 2,816.98-4,221.65-2,291.09

Finding the Fourth Proportional to 2,816.98, 4,221.65 and 2,291.09

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Solution

The fourth proportional to 2,816.98, 4,221.65 and 2,291.09 is: 3,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.98 : 4,221.65 = 2,291.09 : x
  2. Step 2: Convert to fraction form
    2,816.98/4,221.65 = 2,291.09/x
  3. Step 3: Cross multiply
    2,816.98x = 4,221.65 × 2,291.09
  4. Step 4: Simplify right side
    2,816.98x = 9,672,164.72
  5. Step 5: Solve for x
    x = 9,672,164.72/2,816.98
  6. Step 6: Final answer
    x = 3,433.53

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1.5x scale

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.