Home / 2,428.16-3,642.30-673.29

Finding the Fourth Proportional to 2,428.16, 3,642.30 and 673.29

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Solution

The fourth proportional to 2,428.16, 3,642.30 and 673.29 is: 1,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.16 : 3,642.30 = 673.29 : x
  2. Step 2: Convert to fraction form
    2,428.16/3,642.30 = 673.29/x
  3. Step 3: Cross multiply
    2,428.16x = 3,642.30 × 673.29
  4. Step 4: Simplify right side
    2,428.16x = 2,452,324.17
  5. Step 5: Solve for x
    x = 2,452,324.17/2,428.16
  6. Step 6: Final answer
    x = 1,009.95

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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.