Home / 2,811.18-3,884.58-2,436.96

Finding the Fourth Proportional to 2,811.18, 3,884.58 and 2,436.96

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Solution

The fourth proportional to 2,811.18, 3,884.58 and 2,436.96 is: 3,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.18 : 3,884.58 = 2,436.96 : x
  2. Step 2: Convert to fraction form
    2,811.18/3,884.58 = 2,436.96/x
  3. Step 3: Cross multiply
    2,811.18x = 3,884.58 × 2,436.96
  4. Step 4: Simplify right side
    2,811.18x = 9,466,566.08
  5. Step 5: Solve for x
    x = 9,466,566.08/2,811.18
  6. Step 6: Final answer
    x = 3,367.47

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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.