Home / 2,992.26-4,128.84-1,665.66

Finding the Fourth Proportional to 2,992.26, 4,128.84 and 1,665.66

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Solution

The fourth proportional to 2,992.26, 4,128.84 and 1,665.66 is: 2,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.26 : 4,128.84 = 1,665.66 : x
  2. Step 2: Convert to fraction form
    2,992.26/4,128.84 = 1,665.66/x
  3. Step 3: Cross multiply
    2,992.26x = 4,128.84 × 1,665.66
  4. Step 4: Simplify right side
    2,992.26x = 6,877,243.63
  5. Step 5: Solve for x
    x = 6,877,243.63/2,992.26
  6. Step 6: Final answer
    x = 2,298.34

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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.