Home / 1,592.80-2,198.68-1,426.72

Finding the Fourth Proportional to 1,592.80, 2,198.68 and 1,426.72

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Solution

The fourth proportional to 1,592.80, 2,198.68 and 1,426.72 is: 1,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.80 : 2,198.68 = 1,426.72 : x
  2. Step 2: Convert to fraction form
    1,592.80/2,198.68 = 1,426.72/x
  3. Step 3: Cross multiply
    1,592.80x = 2,198.68 × 1,426.72
  4. Step 4: Simplify right side
    1,592.80x = 3,136,900.73
  5. Step 5: Solve for x
    x = 3,136,900.73/1,592.80
  6. Step 6: Final answer
    x = 1,969.43

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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.