Home / 3,884,785.20-5,360,752.80-2,165,803.20

Finding the Fourth Proportional to 3,884,785.20, 5,360,752.80 and 2,165,803.20

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Solution

The fourth proportional to 3,884,785.20, 5,360,752.80 and 2,165,803.20 is: 2,988,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884,785.20 : 5,360,752.80 = 2,165,803.20 : x
  2. Step 2: Convert to fraction form
    3,884,785.20/5,360,752.80 = 2,165,803.20/x
  3. Step 3: Cross multiply
    3,884,785.20x = 5,360,752.80 × 2,165,803.20
  4. Step 4: Simplify right side
    3,884,785.20x = 11,610,335,568,648.96
  5. Step 5: Solve for x
    x = 11,610,335,568,648.96/3,884,785.20
  6. Step 6: Final answer
    x = 2,988,668.61

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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.