Home / 2,814.94-3,884.41-1,555.92

Finding the Fourth Proportional to 2,814.94, 3,884.41 and 1,555.92

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Solution

The fourth proportional to 2,814.94, 3,884.41 and 1,555.92 is: 2,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.94 : 3,884.41 = 1,555.92 : x
  2. Step 2: Convert to fraction form
    2,814.94/3,884.41 = 1,555.92/x
  3. Step 3: Cross multiply
    2,814.94x = 3,884.41 × 1,555.92
  4. Step 4: Simplify right side
    2,814.94x = 6,043,813.48
  5. Step 5: Solve for x
    x = 6,043,813.48/2,814.94
  6. Step 6: Final answer
    x = 2,147.05

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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.