Home / 2,979,882.18-4,112,116.35-1,690,694.90

Finding the Fourth Proportional to 2,979,882.18, 4,112,116.35 and 1,690,694.90

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Solution

The fourth proportional to 2,979,882.18, 4,112,116.35 and 1,690,694.90 is: 2,333,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,882.18 : 4,112,116.35 = 1,690,694.90 : x
  2. Step 2: Convert to fraction form
    2,979,882.18/4,112,116.35 = 1,690,694.90/x
  3. Step 3: Cross multiply
    2,979,882.18x = 4,112,116.35 × 1,690,694.90
  4. Step 4: Simplify right side
    2,979,882.18x = 6,952,334,120,591.03
  5. Step 5: Solve for x
    x = 6,952,334,120,591.03/2,979,882.18
  6. Step 6: Final answer
    x = 2,333,090.27

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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.