Home / 5,239.16-7,230.04-2,881.30

Finding the Fourth Proportional to 5,239.16, 7,230.04 and 2,881.30

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Solution

The fourth proportional to 5,239.16, 7,230.04 and 2,881.30 is: 3,976.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.16 : 7,230.04 = 2,881.30 : x
  2. Step 2: Convert to fraction form
    5,239.16/7,230.04 = 2,881.30/x
  3. Step 3: Cross multiply
    5,239.16x = 7,230.04 × 2,881.30
  4. Step 4: Simplify right side
    5,239.16x = 20,831,863.70
  5. Step 5: Solve for x
    x = 20,831,863.70/5,239.16
  6. Step 6: Final answer
    x = 3,976.18

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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.