Home / 2,131,421.04-2,940,990.12-1,271,930.04

Finding the Fourth Proportional to 2,131,421.04, 2,940,990.12 and 1,271,930.04

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Solution

The fourth proportional to 2,131,421.04, 2,940,990.12 and 1,271,930.04 is: 1,755,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,421.04 : 2,940,990.12 = 1,271,930.04 : x
  2. Step 2: Convert to fraction form
    2,131,421.04/2,940,990.12 = 1,271,930.04/x
  3. Step 3: Cross multiply
    2,131,421.04x = 2,940,990.12 × 1,271,930.04
  4. Step 4: Simplify right side
    2,131,421.04x = 3,740,733,680,971.21
  5. Step 5: Solve for x
    x = 3,740,733,680,971.21/2,131,421.04
  6. Step 6: Final answer
    x = 1,755,042.11

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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.