Home / 4,086.20-5,638.02-2,317.62

Finding the Fourth Proportional to 4,086.20, 5,638.02 and 2,317.62

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Solution

The fourth proportional to 4,086.20, 5,638.02 and 2,317.62 is: 3,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.20 : 5,638.02 = 2,317.62 : x
  2. Step 2: Convert to fraction form
    4,086.20/5,638.02 = 2,317.62/x
  3. Step 3: Cross multiply
    4,086.20x = 5,638.02 × 2,317.62
  4. Step 4: Simplify right side
    4,086.20x = 13,066,787.91
  5. Step 5: Solve for x
    x = 13,066,787.91/4,086.20
  6. Step 6: Final answer
    x = 3,197.78

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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.