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Finding the Fourth Proportional to 1,519.80, 2,022.68 and 1,519.80

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Solution

The fourth proportional to 1,519.80, 2,022.68 and 1,519.80 is: 2,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.80 : 2,022.68 = 1,519.80 : x
  2. Step 2: Convert to fraction form
    1,519.80/2,022.68 = 1,519.80/x
  3. Step 3: Cross multiply
    1,519.80x = 2,022.68 × 1,519.80
  4. Step 4: Simplify right side
    1,519.80x = 3,074,061.47
  5. Step 5: Solve for x
    x = 3,074,061.47/1,519.80
  6. Step 6: Final answer
    x = 2,022.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.