Home / 2,808.87-4,211.55-1,248.81

Finding the Fourth Proportional to 2,808.87, 4,211.55 and 1,248.81

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Solution

The fourth proportional to 2,808.87, 4,211.55 and 1,248.81 is: 1,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.87 : 4,211.55 = 1,248.81 : x
  2. Step 2: Convert to fraction form
    2,808.87/4,211.55 = 1,248.81/x
  3. Step 3: Cross multiply
    2,808.87x = 4,211.55 × 1,248.81
  4. Step 4: Simplify right side
    2,808.87x = 5,259,425.76
  5. Step 5: Solve for x
    x = 5,259,425.76/2,808.87
  6. Step 6: Final answer
    x = 1,872.43

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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.