Home / 3,362.88-5,043.36-1,387.68

Finding the Fourth Proportional to 3,362.88, 5,043.36 and 1,387.68

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Solution

The fourth proportional to 3,362.88, 5,043.36 and 1,387.68 is: 2,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.88 : 5,043.36 = 1,387.68 : x
  2. Step 2: Convert to fraction form
    3,362.88/5,043.36 = 1,387.68/x
  3. Step 3: Cross multiply
    3,362.88x = 5,043.36 × 1,387.68
  4. Step 4: Simplify right side
    3,362.88x = 6,998,569.80
  5. Step 5: Solve for x
    x = 6,998,569.80/3,362.88
  6. Step 6: Final answer
    x = 2,081.12

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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.