Home / 2,972.31-4,458.48-1,218.27

Finding the Fourth Proportional to 2,972.31, 4,458.48 and 1,218.27

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Solution

The fourth proportional to 2,972.31, 4,458.48 and 1,218.27 is: 1,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.31 : 4,458.48 = 1,218.27 : x
  2. Step 2: Convert to fraction form
    2,972.31/4,458.48 = 1,218.27/x
  3. Step 3: Cross multiply
    2,972.31x = 4,458.48 × 1,218.27
  4. Step 4: Simplify right side
    2,972.31x = 5,431,632.43
  5. Step 5: Solve for x
    x = 5,431,632.43/2,972.31
  6. Step 6: Final answer
    x = 1,827.41

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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.