Home / 5,133.16-7,083.78-2,775.31

Finding the Fourth Proportional to 5,133.16, 7,083.78 and 2,775.31

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Solution

The fourth proportional to 5,133.16, 7,083.78 and 2,775.31 is: 3,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.16 : 7,083.78 = 2,775.31 : x
  2. Step 2: Convert to fraction form
    5,133.16/7,083.78 = 2,775.31/x
  3. Step 3: Cross multiply
    5,133.16x = 7,083.78 × 2,775.31
  4. Step 4: Simplify right side
    5,133.16x = 19,659,685.47
  5. Step 5: Solve for x
    x = 19,659,685.47/5,133.16
  6. Step 6: Final answer
    x = 3,829.94

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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.