Home / 2,211.50-3,317.02-1,387.33

Finding the Fourth Proportional to 2,211.50, 3,317.02 and 1,387.33

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Solution

The fourth proportional to 2,211.50, 3,317.02 and 1,387.33 is: 2,080.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.50 : 3,317.02 = 1,387.33 : x
  2. Step 2: Convert to fraction form
    2,211.50/3,317.02 = 1,387.33/x
  3. Step 3: Cross multiply
    2,211.50x = 3,317.02 × 1,387.33
  4. Step 4: Simplify right side
    2,211.50x = 4,601,789.60
  5. Step 5: Solve for x
    x = 4,601,789.60/2,211.50
  6. Step 6: Final answer
    x = 2,080.84

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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.