Home / 3,322.80-4,975.29-1,857.78

Finding the Fourth Proportional to 3,322.80, 4,975.29 and 1,857.78

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Solution

The fourth proportional to 3,322.80, 4,975.29 and 1,857.78 is: 2,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.80 : 4,975.29 = 1,857.78 : x
  2. Step 2: Convert to fraction form
    3,322.80/4,975.29 = 1,857.78/x
  3. Step 3: Cross multiply
    3,322.80x = 4,975.29 × 1,857.78
  4. Step 4: Simplify right side
    3,322.80x = 9,242,994.26
  5. Step 5: Solve for x
    x = 9,242,994.26/3,322.80
  6. Step 6: Final answer
    x = 2,781.69

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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.