Home / 2,211.14-3,313.27-1,284.40

Finding the Fourth Proportional to 2,211.14, 3,313.27 and 1,284.40

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Solution

The fourth proportional to 2,211.14, 3,313.27 and 1,284.40 is: 1,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.14 : 3,313.27 = 1,284.40 : x
  2. Step 2: Convert to fraction form
    2,211.14/3,313.27 = 1,284.40/x
  3. Step 3: Cross multiply
    2,211.14x = 3,313.27 × 1,284.40
  4. Step 4: Simplify right side
    2,211.14x = 4,255,569.74
  5. Step 5: Solve for x
    x = 4,255,569.74/2,211.14
  6. Step 6: Final answer
    x = 1,924.60

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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.