Home / 3,077,694.87-4,245,016.21-2,160,128.76

Finding the Fourth Proportional to 3,077,694.87, 4,245,016.21 and 2,160,128.76

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Solution

The fourth proportional to 3,077,694.87, 4,245,016.21 and 2,160,128.76 is: 2,979,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077,694.87 : 4,245,016.21 = 2,160,128.76 : x
  2. Step 2: Convert to fraction form
    3,077,694.87/4,245,016.21 = 2,160,128.76/x
  3. Step 3: Cross multiply
    3,077,694.87x = 4,245,016.21 × 2,160,128.76
  4. Step 4: Simplify right side
    3,077,694.87x = 9,169,781,580,568.07
  5. Step 5: Solve for x
    x = 9,169,781,580,568.07/3,077,694.87
  6. Step 6: Final answer
    x = 2,979,431.68

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Double scale
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1.5x scale

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.