Home / 2,216.63-3,058.92-1,272.42

Finding the Fourth Proportional to 2,216.63, 3,058.92 and 1,272.42

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Solution

The fourth proportional to 2,216.63, 3,058.92 and 1,272.42 is: 1,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.63 : 3,058.92 = 1,272.42 : x
  2. Step 2: Convert to fraction form
    2,216.63/3,058.92 = 1,272.42/x
  3. Step 3: Cross multiply
    2,216.63x = 3,058.92 × 1,272.42
  4. Step 4: Simplify right side
    2,216.63x = 3,892,230.99
  5. Step 5: Solve for x
    x = 3,892,230.99/2,216.63
  6. Step 6: Final answer
    x = 1,755.92

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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.