Home / 3,939,881.71-5,437,882.11-2,488,654.12

Finding the Fourth Proportional to 3,939,881.71, 5,437,882.11 and 2,488,654.12

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Solution

The fourth proportional to 3,939,881.71, 5,437,882.11 and 2,488,654.12 is: 3,434,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,881.71 : 5,437,882.11 = 2,488,654.12 : x
  2. Step 2: Convert to fraction form
    3,939,881.71/5,437,882.11 = 2,488,654.12/x
  3. Step 3: Cross multiply
    3,939,881.71x = 5,437,882.11 × 2,488,654.12
  4. Step 4: Simplify right side
    3,939,881.71x = 13,533,007,717,125.79
  5. Step 5: Solve for x
    x = 13,533,007,717,125.79/3,939,881.71
  6. Step 6: Final answer
    x = 3,434,876.66

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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.