Home / 2,156,362.65-2,976,736.91-1,392,788.61

Finding the Fourth Proportional to 2,156,362.65, 2,976,736.91 and 1,392,788.61

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Solution

The fourth proportional to 2,156,362.65, 2,976,736.91 and 1,392,788.61 is: 1,922,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,362.65 : 2,976,736.91 = 1,392,788.61 : x
  2. Step 2: Convert to fraction form
    2,156,362.65/2,976,736.91 = 1,392,788.61/x
  3. Step 3: Cross multiply
    2,156,362.65x = 2,976,736.91 × 1,392,788.61
  4. Step 4: Simplify right side
    2,156,362.65x = 4,145,965,256,250.65
  5. Step 5: Solve for x
    x = 4,145,965,256,250.65/2,156,362.65
  6. Step 6: Final answer
    x = 1,922,666.05

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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.