Home / 2,268.30-3,398.40-1,855.20

Finding the Fourth Proportional to 2,268.30, 3,398.40 and 1,855.20

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Solution

The fourth proportional to 2,268.30, 3,398.40 and 1,855.20 is: 2,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.30 : 3,398.40 = 1,855.20 : x
  2. Step 2: Convert to fraction form
    2,268.30/3,398.40 = 1,855.20/x
  3. Step 3: Cross multiply
    2,268.30x = 3,398.40 × 1,855.20
  4. Step 4: Simplify right side
    2,268.30x = 6,304,711.68
  5. Step 5: Solve for x
    x = 6,304,711.68/2,268.30
  6. Step 6: Final answer
    x = 2,779.49

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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.