Home / 2,151,689.20-2,962,921.84-2,103,949.40

Finding the Fourth Proportional to 2,151,689.20, 2,962,921.84 and 2,103,949.40

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Solution

The fourth proportional to 2,151,689.20, 2,962,921.84 and 2,103,949.40 is: 2,897,183.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151,689.20 : 2,962,921.84 = 2,103,949.40 : x
  2. Step 2: Convert to fraction form
    2,151,689.20/2,962,921.84 = 2,103,949.40/x
  3. Step 3: Cross multiply
    2,151,689.20x = 2,962,921.84 × 2,103,949.40
  4. Step 4: Simplify right side
    2,151,689.20x = 6,233,837,627,514.90
  5. Step 5: Solve for x
    x = 6,233,837,627,514.90/2,151,689.20
  6. Step 6: Final answer
    x = 2,897,183.12

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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.