Home / 2,528.80-3,790.88-2,141.29

Finding the Fourth Proportional to 2,528.80, 3,790.88 and 2,141.29

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Solution

The fourth proportional to 2,528.80, 3,790.88 and 2,141.29 is: 3,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.80 : 3,790.88 = 2,141.29 : x
  2. Step 2: Convert to fraction form
    2,528.80/3,790.88 = 2,141.29/x
  3. Step 3: Cross multiply
    2,528.80x = 3,790.88 × 2,141.29
  4. Step 4: Simplify right side
    2,528.80x = 8,117,373.44
  5. Step 5: Solve for x
    x = 8,117,373.44/2,528.80
  6. Step 6: Final answer
    x = 3,209.97

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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.