Home / 2,131,043.79-2,940,792.30-1,164,178.38

Finding the Fourth Proportional to 2,131,043.79, 2,940,792.30 and 1,164,178.38

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Solution

The fourth proportional to 2,131,043.79, 2,940,792.30 and 1,164,178.38 is: 1,606,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,043.79 : 2,940,792.30 = 1,164,178.38 : x
  2. Step 2: Convert to fraction form
    2,131,043.79/2,940,792.30 = 1,164,178.38/x
  3. Step 3: Cross multiply
    2,131,043.79x = 2,940,792.30 × 1,164,178.38
  4. Step 4: Simplify right side
    2,131,043.79x = 3,423,606,815,730.47
  5. Step 5: Solve for x
    x = 3,423,606,815,730.47/2,131,043.79
  6. Step 6: Final answer
    x = 1,606,539.87

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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.