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Finding the Fourth Proportional to 5,290.85, 7,936.29 and 1,593.09

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Solution

The fourth proportional to 5,290.85, 7,936.29 and 1,593.09 is: 2,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.85 : 7,936.29 = 1,593.09 : x
  2. Step 2: Convert to fraction form
    5,290.85/7,936.29 = 1,593.09/x
  3. Step 3: Cross multiply
    5,290.85x = 7,936.29 × 1,593.09
  4. Step 4: Simplify right side
    5,290.85x = 12,643,224.24
  5. Step 5: Solve for x
    x = 12,643,224.24/5,290.85
  6. Step 6: Final answer
    x = 2,389.64

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.