Home / 2,210.36-3,314.49-1,286.18

Finding the Fourth Proportional to 2,210.36, 3,314.49 and 1,286.18

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Solution

The fourth proportional to 2,210.36, 3,314.49 and 1,286.18 is: 1,928.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.36 : 3,314.49 = 1,286.18 : x
  2. Step 2: Convert to fraction form
    2,210.36/3,314.49 = 1,286.18/x
  3. Step 3: Cross multiply
    2,210.36x = 3,314.49 × 1,286.18
  4. Step 4: Simplify right side
    2,210.36x = 4,263,032.63
  5. Step 5: Solve for x
    x = 4,263,032.63/2,210.36
  6. Step 6: Final answer
    x = 1,928.66

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1.5x scale

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.