Home / 3,108,422.16-4,287,980.70-2,139,870.96

Finding the Fourth Proportional to 3,108,422.16, 4,287,980.70 and 2,139,870.96

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Solution

The fourth proportional to 3,108,422.16, 4,287,980.70 and 2,139,870.96 is: 2,951,891.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,422.16 : 4,287,980.70 = 2,139,870.96 : x
  2. Step 2: Convert to fraction form
    3,108,422.16/4,287,980.70 = 2,139,870.96/x
  3. Step 3: Cross multiply
    3,108,422.16x = 4,287,980.70 × 2,139,870.96
  4. Step 4: Simplify right side
    3,108,422.16x = 9,175,725,376,970.47
  5. Step 5: Solve for x
    x = 9,175,725,376,970.47/3,108,422.16
  6. Step 6: Final answer
    x = 2,951,891.64

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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.