Home / 5,239.46-7,230.18-2,881.14

Finding the Fourth Proportional to 5,239.46, 7,230.18 and 2,881.14

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Solution

The fourth proportional to 5,239.46, 7,230.18 and 2,881.14 is: 3,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.46 : 7,230.18 = 2,881.14 : x
  2. Step 2: Convert to fraction form
    5,239.46/7,230.18 = 2,881.14/x
  3. Step 3: Cross multiply
    5,239.46x = 7,230.18 × 2,881.14
  4. Step 4: Simplify right side
    5,239.46x = 20,831,160.81
  5. Step 5: Solve for x
    x = 20,831,160.81/5,239.46
  6. Step 6: Final answer
    x = 3,975.82

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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.