Home / 1,513.38-2,088.45-850.23

Finding the Fourth Proportional to 1,513.38, 2,088.45 and 850.23

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Solution

The fourth proportional to 1,513.38, 2,088.45 and 850.23 is: 1,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.38 : 2,088.45 = 850.23 : x
  2. Step 2: Convert to fraction form
    1,513.38/2,088.45 = 850.23/x
  3. Step 3: Cross multiply
    1,513.38x = 2,088.45 × 850.23
  4. Step 4: Simplify right side
    1,513.38x = 1,775,662.84
  5. Step 5: Solve for x
    x = 1,775,662.84/1,513.38
  6. Step 6: Final answer
    x = 1,173.31

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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.