Home / 1,348.08-2,021.40-481.92

Finding the Fourth Proportional to 1,348.08, 2,021.40 and 481.92

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Solution

The fourth proportional to 1,348.08, 2,021.40 and 481.92 is: 722.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.08 : 2,021.40 = 481.92 : x
  2. Step 2: Convert to fraction form
    1,348.08/2,021.40 = 481.92/x
  3. Step 3: Cross multiply
    1,348.08x = 2,021.40 × 481.92
  4. Step 4: Simplify right side
    1,348.08x = 974,153.09
  5. Step 5: Solve for x
    x = 974,153.09/1,348.08
  6. Step 6: Final answer
    x = 722.62

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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.