Home / 2,168,980.78-2,992,509.48-1,251,086.90

Finding the Fourth Proportional to 2,168,980.78, 2,992,509.48 and 1,251,086.90

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Solution

The fourth proportional to 2,168,980.78, 2,992,509.48 and 1,251,086.90 is: 1,726,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,980.78 : 2,992,509.48 = 1,251,086.90 : x
  2. Step 2: Convert to fraction form
    2,168,980.78/2,992,509.48 = 1,251,086.90/x
  3. Step 3: Cross multiply
    2,168,980.78x = 2,992,509.48 × 1,251,086.90
  4. Step 4: Simplify right side
    2,168,980.78x = 3,743,889,408,553.81
  5. Step 5: Solve for x
    x = 3,743,889,408,553.81/2,168,980.78
  6. Step 6: Final answer
    x = 1,726,105.39

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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.