Home / 2,212.29-3,318.60-568.85

Finding the Fourth Proportional to 2,212.29, 3,318.60 and 568.85

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Solution

The fourth proportional to 2,212.29, 3,318.60 and 568.85 is: 853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.29 : 3,318.60 = 568.85 : x
  2. Step 2: Convert to fraction form
    2,212.29/3,318.60 = 568.85/x
  3. Step 3: Cross multiply
    2,212.29x = 3,318.60 × 568.85
  4. Step 4: Simplify right side
    2,212.29x = 1,887,779.28
  5. Step 5: Solve for x
    x = 1,887,779.28/2,212.29
  6. Step 6: Final answer
    x = 853.32

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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.