Home / 5,057.01-6,978.24-2,818.71

Finding the Fourth Proportional to 5,057.01, 6,978.24 and 2,818.71

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Solution

The fourth proportional to 5,057.01, 6,978.24 and 2,818.71 is: 3,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.01 : 6,978.24 = 2,818.71 : x
  2. Step 2: Convert to fraction form
    5,057.01/6,978.24 = 2,818.71/x
  3. Step 3: Cross multiply
    5,057.01x = 6,978.24 × 2,818.71
  4. Step 4: Simplify right side
    5,057.01x = 19,669,634.87
  5. Step 5: Solve for x
    x = 19,669,634.87/5,057.01
  6. Step 6: Final answer
    x = 3,889.58

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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.