Home / 2,212.35-3,318.51-568.91

Finding the Fourth Proportional to 2,212.35, 3,318.51 and 568.91

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Solution

The fourth proportional to 2,212.35, 3,318.51 and 568.91 is: 853.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.35 : 3,318.51 = 568.91 : x
  2. Step 2: Convert to fraction form
    2,212.35/3,318.51 = 568.91/x
  3. Step 3: Cross multiply
    2,212.35x = 3,318.51 × 568.91
  4. Step 4: Simplify right side
    2,212.35x = 1,887,916.93
  5. Step 5: Solve for x
    x = 1,887,916.93/2,212.35
  6. Step 6: Final answer
    x = 853.35

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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.