Home / 3,891,280.50-5,370,502.91-2,172,495.33

Finding the Fourth Proportional to 3,891,280.50, 5,370,502.91 and 2,172,495.33

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Solution

The fourth proportional to 3,891,280.50, 5,370,502.91 and 2,172,495.33 is: 2,998,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,280.50 : 5,370,502.91 = 2,172,495.33 : x
  2. Step 2: Convert to fraction form
    3,891,280.50/5,370,502.91 = 2,172,495.33/x
  3. Step 3: Cross multiply
    3,891,280.50x = 5,370,502.91 × 2,172,495.33
  4. Step 4: Simplify right side
    3,891,280.50x = 11,667,392,480,863.94
  5. Step 5: Solve for x
    x = 11,667,392,480,863.94/3,891,280.50
  6. Step 6: Final answer
    x = 2,998,342.70

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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.