Home / 3,989,631.84-5,982,716.52-2,191,976.16

Finding the Fourth Proportional to 3,989,631.84, 5,982,716.52 and 2,191,976.16

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Solution

The fourth proportional to 3,989,631.84, 5,982,716.52 and 2,191,976.16 is: 3,287,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,631.84 : 5,982,716.52 = 2,191,976.16 : x
  2. Step 2: Convert to fraction form
    3,989,631.84/5,982,716.52 = 2,191,976.16/x
  3. Step 3: Cross multiply
    3,989,631.84x = 5,982,716.52 × 2,191,976.16
  4. Step 4: Simplify right side
    3,989,631.84x = 13,113,971,983,878.16
  5. Step 5: Solve for x
    x = 13,113,971,983,878.16/3,989,631.84
  6. Step 6: Final answer
    x = 3,287,013.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.