Home / 3,921,484.57-5,411,811.40-2,179,147.45

Finding the Fourth Proportional to 3,921,484.57, 5,411,811.40 and 2,179,147.45

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Solution

The fourth proportional to 3,921,484.57, 5,411,811.40 and 2,179,147.45 is: 3,007,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,484.57 : 5,411,811.40 = 2,179,147.45 : x
  2. Step 2: Convert to fraction form
    3,921,484.57/5,411,811.40 = 2,179,147.45/x
  3. Step 3: Cross multiply
    3,921,484.57x = 5,411,811.40 × 2,179,147.45
  4. Step 4: Simplify right side
    3,921,484.57x = 11,793,135,012,190.93
  5. Step 5: Solve for x
    x = 11,793,135,012,190.93/3,921,484.57
  6. Step 6: Final answer
    x = 3,007,313.89

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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.