Home / 5,615.80-8,423.70-5,194.60

Finding the Fourth Proportional to 5,615.80, 8,423.70 and 5,194.60

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Solution

The fourth proportional to 5,615.80, 8,423.70 and 5,194.60 is: 7,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.80 : 8,423.70 = 5,194.60 : x
  2. Step 2: Convert to fraction form
    5,615.80/8,423.70 = 5,194.60/x
  3. Step 3: Cross multiply
    5,615.80x = 8,423.70 × 5,194.60
  4. Step 4: Simplify right side
    5,615.80x = 43,757,752.02
  5. Step 5: Solve for x
    x = 43,757,752.02/5,615.80
  6. Step 6: Final answer
    x = 7,791.90

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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.