Home / 3,970,838.56-5,479,732.56-2,160,009.76

Finding the Fourth Proportional to 3,970,838.56, 5,479,732.56 and 2,160,009.76

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Solution

The fourth proportional to 3,970,838.56, 5,479,732.56 and 2,160,009.76 is: 2,980,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970,838.56 : 5,479,732.56 = 2,160,009.76 : x
  2. Step 2: Convert to fraction form
    3,970,838.56/5,479,732.56 = 2,160,009.76/x
  3. Step 3: Cross multiply
    3,970,838.56x = 5,479,732.56 × 2,160,009.76
  4. Step 4: Simplify right side
    3,970,838.56x = 11,836,275,811,789.78
  5. Step 5: Solve for x
    x = 11,836,275,811,789.78/3,970,838.56
  6. Step 6: Final answer
    x = 2,980,800.06

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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.