Home / 5,143.62-7,708.65-2,804.64

Finding the Fourth Proportional to 5,143.62, 7,708.65 and 2,804.64

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Solution

The fourth proportional to 5,143.62, 7,708.65 and 2,804.64 is: 4,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.62 : 7,708.65 = 2,804.64 : x
  2. Step 2: Convert to fraction form
    5,143.62/7,708.65 = 2,804.64/x
  3. Step 3: Cross multiply
    5,143.62x = 7,708.65 × 2,804.64
  4. Step 4: Simplify right side
    5,143.62x = 21,619,988.14
  5. Step 5: Solve for x
    x = 21,619,988.14/5,143.62
  6. Step 6: Final answer
    x = 4,203.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.