Home / 3,171,311.79-4,376,442.35-1,721,019.75

Finding the Fourth Proportional to 3,171,311.79, 4,376,442.35 and 1,721,019.75

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Solution

The fourth proportional to 3,171,311.79, 4,376,442.35 and 1,721,019.75 is: 2,375,024.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,311.79 : 4,376,442.35 = 1,721,019.75 : x
  2. Step 2: Convert to fraction form
    3,171,311.79/4,376,442.35 = 1,721,019.75/x
  3. Step 3: Cross multiply
    3,171,311.79x = 4,376,442.35 × 1,721,019.75
  4. Step 4: Simplify right side
    3,171,311.79x = 7,531,943,719,086.41
  5. Step 5: Solve for x
    x = 7,531,943,719,086.41/3,171,311.79
  6. Step 6: Final answer
    x = 2,375,024.66

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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.