Home / 2,131,920.76-2,942,058.36-1,165,065.88

Finding the Fourth Proportional to 2,131,920.76, 2,942,058.36 and 1,165,065.88

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Solution

The fourth proportional to 2,131,920.76, 2,942,058.36 and 1,165,065.88 is: 1,607,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,920.76 : 2,942,058.36 = 1,165,065.88 : x
  2. Step 2: Convert to fraction form
    2,131,920.76/2,942,058.36 = 1,165,065.88/x
  3. Step 3: Cross multiply
    2,131,920.76x = 2,942,058.36 × 1,165,065.88
  4. Step 4: Simplify right side
    2,131,920.76x = 3,427,691,812,204.76
  5. Step 5: Solve for x
    x = 3,427,691,812,204.76/2,131,920.76
  6. Step 6: Final answer
    x = 1,607,795.13

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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.