Home / 3,690.06-5,090.76-2,197.68

Finding the Fourth Proportional to 3,690.06, 5,090.76 and 2,197.68

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Solution

The fourth proportional to 3,690.06, 5,090.76 and 2,197.68 is: 3,031.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.06 : 5,090.76 = 2,197.68 : x
  2. Step 2: Convert to fraction form
    3,690.06/5,090.76 = 2,197.68/x
  3. Step 3: Cross multiply
    3,690.06x = 5,090.76 × 2,197.68
  4. Step 4: Simplify right side
    3,690.06x = 11,187,861.44
  5. Step 5: Solve for x
    x = 11,187,861.44/3,690.06
  6. Step 6: Final answer
    x = 3,031.89

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Half scale
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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.