Home / 3,782,149.64-5,218,964.04-2,128,267.87

Finding the Fourth Proportional to 3,782,149.64, 5,218,964.04 and 2,128,267.87

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Solution

The fourth proportional to 3,782,149.64, 5,218,964.04 and 2,128,267.87 is: 2,936,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782,149.64 : 5,218,964.04 = 2,128,267.87 : x
  2. Step 2: Convert to fraction form
    3,782,149.64/5,218,964.04 = 2,128,267.87/x
  3. Step 3: Cross multiply
    3,782,149.64x = 5,218,964.04 × 2,128,267.87
  4. Step 4: Simplify right side
    3,782,149.64x = 11,107,353,475,696.72
  5. Step 5: Solve for x
    x = 11,107,353,475,696.72/3,782,149.64
  6. Step 6: Final answer
    x = 2,936,783.19

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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.