Home / 3,922.80-5,884.38-2,278.08

Finding the Fourth Proportional to 3,922.80, 5,884.38 and 2,278.08

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Solution

The fourth proportional to 3,922.80, 5,884.38 and 2,278.08 is: 3,417.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.80 : 5,884.38 = 2,278.08 : x
  2. Step 2: Convert to fraction form
    3,922.80/5,884.38 = 2,278.08/x
  3. Step 3: Cross multiply
    3,922.80x = 5,884.38 × 2,278.08
  4. Step 4: Simplify right side
    3,922.80x = 13,405,088.39
  5. Step 5: Solve for x
    x = 13,405,088.39/3,922.80
  6. Step 6: Final answer
    x = 3,417.22

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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.