Home / 1,513.89-2,088.99-850.70

Finding the Fourth Proportional to 1,513.89, 2,088.99 and 850.70

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Solution

The fourth proportional to 1,513.89, 2,088.99 and 850.70 is: 1,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.89 : 2,088.99 = 850.70 : x
  2. Step 2: Convert to fraction form
    1,513.89/2,088.99 = 850.70/x
  3. Step 3: Cross multiply
    1,513.89x = 2,088.99 × 850.70
  4. Step 4: Simplify right side
    1,513.89x = 1,777,109.02
  5. Step 5: Solve for x
    x = 1,777,109.02/1,513.89
  6. Step 6: Final answer
    x = 1,173.87

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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.