Home / 3,890,753.90-5,369,017.65-2,171,983.31

Finding the Fourth Proportional to 3,890,753.90, 5,369,017.65 and 2,171,983.31

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Solution

The fourth proportional to 3,890,753.90, 5,369,017.65 and 2,171,983.31 is: 2,997,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,753.90 : 5,369,017.65 = 2,171,983.31 : x
  2. Step 2: Convert to fraction form
    3,890,753.90/5,369,017.65 = 2,171,983.31/x
  3. Step 3: Cross multiply
    3,890,753.90x = 5,369,017.65 × 2,171,983.31
  4. Step 4: Simplify right side
    3,890,753.90x = 11,661,416,726,895.42
  5. Step 5: Solve for x
    x = 11,661,416,726,895.42/3,890,753.90
  6. Step 6: Final answer
    x = 2,997,212.63

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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.