Home / 2,211.93-3,052.47-1,217.31

Finding the Fourth Proportional to 2,211.93, 3,052.47 and 1,217.31

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Solution

The fourth proportional to 2,211.93, 3,052.47 and 1,217.31 is: 1,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.93 : 3,052.47 = 1,217.31 : x
  2. Step 2: Convert to fraction form
    2,211.93/3,052.47 = 1,217.31/x
  3. Step 3: Cross multiply
    2,211.93x = 3,052.47 × 1,217.31
  4. Step 4: Simplify right side
    2,211.93x = 3,715,802.26
  5. Step 5: Solve for x
    x = 3,715,802.26/2,211.93
  6. Step 6: Final answer
    x = 1,679.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.