Home / 1,855.38-2,559.69-1,226.25

Finding the Fourth Proportional to 1,855.38, 2,559.69 and 1,226.25

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Solution

The fourth proportional to 1,855.38, 2,559.69 and 1,226.25 is: 1,691.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.38 : 2,559.69 = 1,226.25 : x
  2. Step 2: Convert to fraction form
    1,855.38/2,559.69 = 1,226.25/x
  3. Step 3: Cross multiply
    1,855.38x = 2,559.69 × 1,226.25
  4. Step 4: Simplify right side
    1,855.38x = 3,138,819.86
  5. Step 5: Solve for x
    x = 3,138,819.86/1,855.38
  6. Step 6: Final answer
    x = 1,691.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.