Home / 2,422.13-3,343.07-1,427.05

Finding the Fourth Proportional to 2,422.13, 3,343.07 and 1,427.05

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Solution

The fourth proportional to 2,422.13, 3,343.07 and 1,427.05 is: 1,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.13 : 3,343.07 = 1,427.05 : x
  2. Step 2: Convert to fraction form
    2,422.13/3,343.07 = 1,427.05/x
  3. Step 3: Cross multiply
    2,422.13x = 3,343.07 × 1,427.05
  4. Step 4: Simplify right side
    2,422.13x = 4,770,704.19
  5. Step 5: Solve for x
    x = 4,770,704.19/2,422.13
  6. Step 6: Final answer
    x = 1,969.63

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Double scale
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1.5x scale

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.