Home / 3,765.67-5,197.48-2,506.78

Finding the Fourth Proportional to 3,765.67, 5,197.48 and 2,506.78

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Solution

The fourth proportional to 3,765.67, 5,197.48 and 2,506.78 is: 3,459.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.67 : 5,197.48 = 2,506.78 : x
  2. Step 2: Convert to fraction form
    3,765.67/5,197.48 = 2,506.78/x
  3. Step 3: Cross multiply
    3,765.67x = 5,197.48 × 2,506.78
  4. Step 4: Simplify right side
    3,765.67x = 13,028,912.93
  5. Step 5: Solve for x
    x = 13,028,912.93/3,765.67
  6. Step 6: Final answer
    x = 3,459.92

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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.