Home / 3,899,665.64-5,381,315.30-2,157,231.08

Finding the Fourth Proportional to 3,899,665.64, 5,381,315.30 and 2,157,231.08

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Solution

The fourth proportional to 3,899,665.64, 5,381,315.30 and 2,157,231.08 is: 2,976,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,665.64 : 5,381,315.30 = 2,157,231.08 : x
  2. Step 2: Convert to fraction form
    3,899,665.64/5,381,315.30 = 2,157,231.08/x
  3. Step 3: Cross multiply
    3,899,665.64x = 5,381,315.30 × 2,157,231.08
  4. Step 4: Simplify right side
    3,899,665.64x = 11,608,740,616,439.52
  5. Step 5: Solve for x
    x = 11,608,740,616,439.52/3,899,665.64
  6. Step 6: Final answer
    x = 2,976,855.37

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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.