Home / 1,516.35-2,092.62-919.04

Finding the Fourth Proportional to 1,516.35, 2,092.62 and 919.04

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Solution

The fourth proportional to 1,516.35, 2,092.62 and 919.04 is: 1,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.35 : 2,092.62 = 919.04 : x
  2. Step 2: Convert to fraction form
    1,516.35/2,092.62 = 919.04/x
  3. Step 3: Cross multiply
    1,516.35x = 2,092.62 × 919.04
  4. Step 4: Simplify right side
    1,516.35x = 1,923,201.48
  5. Step 5: Solve for x
    x = 1,923,201.48/1,516.35
  6. Step 6: Final answer
    x = 1,268.31

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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.