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Finding the Fourth Proportional to 3,860.76, 5,796.90 and 2,219.16

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Solution

The fourth proportional to 3,860.76, 5,796.90 and 2,219.16 is: 3,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.76 : 5,796.90 = 2,219.16 : x
  2. Step 2: Convert to fraction form
    3,860.76/5,796.90 = 2,219.16/x
  3. Step 3: Cross multiply
    3,860.76x = 5,796.90 × 2,219.16
  4. Step 4: Simplify right side
    3,860.76x = 12,864,248.60
  5. Step 5: Solve for x
    x = 12,864,248.60/3,860.76
  6. Step 6: Final answer
    x = 3,332.05

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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.