Home / 1,513.37-2,088.41-850.21

Finding the Fourth Proportional to 1,513.37, 2,088.41 and 850.21

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Solution

The fourth proportional to 1,513.37, 2,088.41 and 850.21 is: 1,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.37 : 2,088.41 = 850.21 : x
  2. Step 2: Convert to fraction form
    1,513.37/2,088.41 = 850.21/x
  3. Step 3: Cross multiply
    1,513.37x = 2,088.41 × 850.21
  4. Step 4: Simplify right side
    1,513.37x = 1,775,583.97
  5. Step 5: Solve for x
    x = 1,775,583.97/1,513.37
  6. Step 6: Final answer
    x = 1,173.26

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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.