Home / 3,321,386.20-4,982,079.30-2,187,645.40

Finding the Fourth Proportional to 3,321,386.20, 4,982,079.30 and 2,187,645.40

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Solution

The fourth proportional to 3,321,386.20, 4,982,079.30 and 2,187,645.40 is: 3,281,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321,386.20 : 4,982,079.30 = 2,187,645.40 : x
  2. Step 2: Convert to fraction form
    3,321,386.20/4,982,079.30 = 2,187,645.40/x
  3. Step 3: Cross multiply
    3,321,386.20x = 4,982,079.30 × 2,187,645.40
  4. Step 4: Simplify right side
    3,321,386.20x = 10,899,022,863,080.22
  5. Step 5: Solve for x
    x = 10,899,022,863,080.22/3,321,386.20
  6. Step 6: Final answer
    x = 3,281,468.10

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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.