Home / 3,765.40-5,193.66-2,648.68

Finding the Fourth Proportional to 3,765.40, 5,193.66 and 2,648.68

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Solution

The fourth proportional to 3,765.40, 5,193.66 and 2,648.68 is: 3,653.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.40 : 5,193.66 = 2,648.68 : x
  2. Step 2: Convert to fraction form
    3,765.40/5,193.66 = 2,648.68/x
  3. Step 3: Cross multiply
    3,765.40x = 5,193.66 × 2,648.68
  4. Step 4: Simplify right side
    3,765.40x = 13,756,343.37
  5. Step 5: Solve for x
    x = 13,756,343.37/3,765.40
  6. Step 6: Final answer
    x = 3,653.36

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Double scale
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Similar ratio
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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.