Home / 2,891,390.22-3,990,141.96-1,602,252.15

Finding the Fourth Proportional to 2,891,390.22, 3,990,141.96 and 1,602,252.15

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Solution

The fourth proportional to 2,891,390.22, 3,990,141.96 and 1,602,252.15 is: 2,211,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,390.22 : 3,990,141.96 = 1,602,252.15 : x
  2. Step 2: Convert to fraction form
    2,891,390.22/3,990,141.96 = 1,602,252.15/x
  3. Step 3: Cross multiply
    2,891,390.22x = 3,990,141.96 × 1,602,252.15
  4. Step 4: Simplify right side
    2,891,390.22x = 6,393,213,534,215.21
  5. Step 5: Solve for x
    x = 6,393,213,534,215.21/2,891,390.22
  6. Step 6: Final answer
    x = 2,211,120.97

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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.