Home / 3,171,631.74-4,376,851.62-1,721,327.28

Finding the Fourth Proportional to 3,171,631.74, 4,376,851.62 and 1,721,327.28

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Solution

The fourth proportional to 3,171,631.74, 4,376,851.62 and 1,721,327.28 is: 2,375,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,631.74 : 4,376,851.62 = 1,721,327.28 : x
  2. Step 2: Convert to fraction form
    3,171,631.74/4,376,851.62 = 1,721,327.28/x
  3. Step 3: Cross multiply
    3,171,631.74x = 4,376,851.62 × 1,721,327.28
  4. Step 4: Simplify right side
    3,171,631.74x = 7,533,994,094,018.19
  5. Step 5: Solve for x
    x = 7,533,994,094,018.19/3,171,631.74
  6. Step 6: Final answer
    x = 2,375,431.55

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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.