Home / 1,620.28-2,428.12-797.73

Finding the Fourth Proportional to 1,620.28, 2,428.12 and 797.73

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Solution

The fourth proportional to 1,620.28, 2,428.12 and 797.73 is: 1,195.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.28 : 2,428.12 = 797.73 : x
  2. Step 2: Convert to fraction form
    1,620.28/2,428.12 = 797.73/x
  3. Step 3: Cross multiply
    1,620.28x = 2,428.12 × 797.73
  4. Step 4: Simplify right side
    1,620.28x = 1,936,984.17
  5. Step 5: Solve for x
    x = 1,936,984.17/1,620.28
  6. Step 6: Final answer
    x = 1,195.46

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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.