Home / 1,428.22-2,141.07-1,342.18

Finding the Fourth Proportional to 1,428.22, 2,141.07 and 1,342.18

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Solution

The fourth proportional to 1,428.22, 2,141.07 and 1,342.18 is: 2,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428.22 : 2,141.07 = 1,342.18 : x
  2. Step 2: Convert to fraction form
    1,428.22/2,141.07 = 1,342.18/x
  3. Step 3: Cross multiply
    1,428.22x = 2,141.07 × 1,342.18
  4. Step 4: Simplify right side
    1,428.22x = 2,873,701.33
  5. Step 5: Solve for x
    x = 2,873,701.33/1,428.22
  6. Step 6: Final answer
    x = 2,012.09

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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.