Home / 2,165,821.29-2,988,868.62-1,185,743.78

Finding the Fourth Proportional to 2,165,821.29, 2,988,868.62 and 1,185,743.78

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Solution

The fourth proportional to 2,165,821.29, 2,988,868.62 and 1,185,743.78 is: 1,636,345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,821.29 : 2,988,868.62 = 1,185,743.78 : x
  2. Step 2: Convert to fraction form
    2,165,821.29/2,988,868.62 = 1,185,743.78/x
  3. Step 3: Cross multiply
    2,165,821.29x = 2,988,868.62 × 1,185,743.78
  4. Step 4: Simplify right side
    2,165,821.29x = 3,544,032,375,402.18
  5. Step 5: Solve for x
    x = 3,544,032,375,402.18/2,165,821.29
  6. Step 6: Final answer
    x = 1,636,345.71

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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.