Home / 3,921.21-5,411.07-2,242.53

Finding the Fourth Proportional to 3,921.21, 5,411.07 and 2,242.53

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Solution

The fourth proportional to 3,921.21, 5,411.07 and 2,242.53 is: 3,094.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.21 : 5,411.07 = 2,242.53 : x
  2. Step 2: Convert to fraction form
    3,921.21/5,411.07 = 2,242.53/x
  3. Step 3: Cross multiply
    3,921.21x = 5,411.07 × 2,242.53
  4. Step 4: Simplify right side
    3,921.21x = 12,134,486.81
  5. Step 5: Solve for x
    x = 12,134,486.81/3,921.21
  6. Step 6: Final answer
    x = 3,094.58

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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.