Home / 3,121,056-4,307,057.28-1,690,272

Finding the Fourth Proportional to 3,121,056, 4,307,057.28 and 1,690,272

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Solution

The fourth proportional to 3,121,056, 4,307,057.28 and 1,690,272 is: 2,332,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,056 : 4,307,057.28 = 1,690,272 : x
  2. Step 2: Convert to fraction form
    3,121,056/4,307,057.28 = 1,690,272/x
  3. Step 3: Cross multiply
    3,121,056x = 4,307,057.28 × 1,690,272
  4. Step 4: Simplify right side
    3,121,056x = 7,280,098,322,780.16
  5. Step 5: Solve for x
    x = 7,280,098,322,780.16/3,121,056
  6. Step 6: Final answer
    x = 2,332,575.36

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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.