Home / 3,742.21-5,589.62-2,911.84

Finding the Fourth Proportional to 3,742.21, 5,589.62 and 2,911.84

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Solution

The fourth proportional to 3,742.21, 5,589.62 and 2,911.84 is: 4,349.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.21 : 5,589.62 = 2,911.84 : x
  2. Step 2: Convert to fraction form
    3,742.21/5,589.62 = 2,911.84/x
  3. Step 3: Cross multiply
    3,742.21x = 5,589.62 × 2,911.84
  4. Step 4: Simplify right side
    3,742.21x = 16,276,061.49
  5. Step 5: Solve for x
    x = 16,276,061.49/3,742.21
  6. Step 6: Final answer
    x = 4,349.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.