Home / 2,928,631.08-4,039,427.70-2,687,691.72

Finding the Fourth Proportional to 2,928,631.08, 4,039,427.70 and 2,687,691.72

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Solution

The fourth proportional to 2,928,631.08, 4,039,427.70 and 2,687,691.72 is: 3,707,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,631.08 : 4,039,427.70 = 2,687,691.72 : x
  2. Step 2: Convert to fraction form
    2,928,631.08/4,039,427.70 = 2,687,691.72/x
  3. Step 3: Cross multiply
    2,928,631.08x = 4,039,427.70 × 2,687,691.72
  4. Step 4: Simplify right side
    2,928,631.08x = 10,856,736,382,828.64
  5. Step 5: Solve for x
    x = 10,856,736,382,828.64/2,928,631.08
  6. Step 6: Final answer
    x = 3,707,102.77

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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.