Home / 2,422.36-3,343.24-1,428.24

Finding the Fourth Proportional to 2,422.36, 3,343.24 and 1,428.24

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Solution

The fourth proportional to 2,422.36, 3,343.24 and 1,428.24 is: 1,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.36 : 3,343.24 = 1,428.24 : x
  2. Step 2: Convert to fraction form
    2,422.36/3,343.24 = 1,428.24/x
  3. Step 3: Cross multiply
    2,422.36x = 3,343.24 × 1,428.24
  4. Step 4: Simplify right side
    2,422.36x = 4,774,949.10
  5. Step 5: Solve for x
    x = 4,774,949.10/2,422.36
  6. Step 6: Final answer
    x = 1,971.20

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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.