Home / 3,736.42-5,155.11-2,164.21

Finding the Fourth Proportional to 3,736.42, 5,155.11 and 2,164.21

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Solution

The fourth proportional to 3,736.42, 5,155.11 and 2,164.21 is: 2,985.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,736.42 : 5,155.11 = 2,164.21 : x
  2. Step 2: Convert to fraction form
    3,736.42/5,155.11 = 2,164.21/x
  3. Step 3: Cross multiply
    3,736.42x = 5,155.11 × 2,164.21
  4. Step 4: Simplify right side
    3,736.42x = 11,156,740.61
  5. Step 5: Solve for x
    x = 11,156,740.61/3,736.42
  6. Step 6: Final answer
    x = 2,985.94

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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.