Home / 1,519.12-2,092.89-1,125.46

Finding the Fourth Proportional to 1,519.12, 2,092.89 and 1,125.46

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Solution

The fourth proportional to 1,519.12, 2,092.89 and 1,125.46 is: 1,550.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.12 : 2,092.89 = 1,125.46 : x
  2. Step 2: Convert to fraction form
    1,519.12/2,092.89 = 1,125.46/x
  3. Step 3: Cross multiply
    1,519.12x = 2,092.89 × 1,125.46
  4. Step 4: Simplify right side
    1,519.12x = 2,355,463.98
  5. Step 5: Solve for x
    x = 2,355,463.98/1,519.12
  6. Step 6: Final answer
    x = 1,550.55

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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.