Home / 2,115.82-2,920.60-1,593.36

Finding the Fourth Proportional to 2,115.82, 2,920.60 and 1,593.36

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Solution

The fourth proportional to 2,115.82, 2,920.60 and 1,593.36 is: 2,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.82 : 2,920.60 = 1,593.36 : x
  2. Step 2: Convert to fraction form
    2,115.82/2,920.60 = 1,593.36/x
  3. Step 3: Cross multiply
    2,115.82x = 2,920.60 × 1,593.36
  4. Step 4: Simplify right side
    2,115.82x = 4,653,567.22
  5. Step 5: Solve for x
    x = 4,653,567.22/2,115.82
  6. Step 6: Final answer
    x = 2,199.42

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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.