Home / 2,165,958.72-2,989,335.84-1,248,012.12

Finding the Fourth Proportional to 2,165,958.72, 2,989,335.84 and 1,248,012.12

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Solution

The fourth proportional to 2,165,958.72, 2,989,335.84 and 1,248,012.12 is: 1,722,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,958.72 : 2,989,335.84 = 1,248,012.12 : x
  2. Step 2: Convert to fraction form
    2,165,958.72/2,989,335.84 = 1,248,012.12/x
  3. Step 3: Cross multiply
    2,165,958.72x = 2,989,335.84 × 1,248,012.12
  4. Step 4: Simplify right side
    2,165,958.72x = 3,730,727,359,070.38
  5. Step 5: Solve for x
    x = 3,730,727,359,070.38/2,165,958.72
  6. Step 6: Final answer
    x = 1,722,436.96

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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.