Home / 1,850.19-2,775.35-809.66

Finding the Fourth Proportional to 1,850.19, 2,775.35 and 809.66

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Solution

The fourth proportional to 1,850.19, 2,775.35 and 809.66 is: 1,214.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.19 : 2,775.35 = 809.66 : x
  2. Step 2: Convert to fraction form
    1,850.19/2,775.35 = 809.66/x
  3. Step 3: Cross multiply
    1,850.19x = 2,775.35 × 809.66
  4. Step 4: Simplify right side
    1,850.19x = 2,247,089.88
  5. Step 5: Solve for x
    x = 2,247,089.88/1,850.19
  6. Step 6: Final answer
    x = 1,214.52

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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.