Home / 3,348.89-5,021.78-1,788.47

Finding the Fourth Proportional to 3,348.89, 5,021.78 and 1,788.47

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Solution

The fourth proportional to 3,348.89, 5,021.78 and 1,788.47 is: 2,681.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.89 : 5,021.78 = 1,788.47 : x
  2. Step 2: Convert to fraction form
    3,348.89/5,021.78 = 1,788.47/x
  3. Step 3: Cross multiply
    3,348.89x = 5,021.78 × 1,788.47
  4. Step 4: Simplify right side
    3,348.89x = 8,981,268.83
  5. Step 5: Solve for x
    x = 8,981,268.83/3,348.89
  6. Step 6: Final answer
    x = 2,681.87

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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.