Home / 2,827.31-4,240.31-1,072.51

Finding the Fourth Proportional to 2,827.31, 4,240.31 and 1,072.51

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Solution

The fourth proportional to 2,827.31, 4,240.31 and 1,072.51 is: 1,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.31 : 4,240.31 = 1,072.51 : x
  2. Step 2: Convert to fraction form
    2,827.31/4,240.31 = 1,072.51/x
  3. Step 3: Cross multiply
    2,827.31x = 4,240.31 × 1,072.51
  4. Step 4: Simplify right side
    2,827.31x = 4,547,758.91
  5. Step 5: Solve for x
    x = 4,547,758.91/2,827.31
  6. Step 6: Final answer
    x = 1,608.51

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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.