Home / 3,783,921.68-5,221,934.04-2,152,287.20

Finding the Fourth Proportional to 3,783,921.68, 5,221,934.04 and 2,152,287.20

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Solution

The fourth proportional to 3,783,921.68, 5,221,934.04 and 2,152,287.20 is: 2,970,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783,921.68 : 5,221,934.04 = 2,152,287.20 : x
  2. Step 2: Convert to fraction form
    3,783,921.68/5,221,934.04 = 2,152,287.20/x
  3. Step 3: Cross multiply
    3,783,921.68x = 5,221,934.04 × 2,152,287.20
  4. Step 4: Simplify right side
    3,783,921.68x = 11,239,101,793,536.29
  5. Step 5: Solve for x
    x = 11,239,101,793,536.29/3,783,921.68
  6. Step 6: Final answer
    x = 2,970,225.80

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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.