Home / 2,215.93-3,058.02-1,221.27

Finding the Fourth Proportional to 2,215.93, 3,058.02 and 1,221.27

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Solution

The fourth proportional to 2,215.93, 3,058.02 and 1,221.27 is: 1,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.93 : 3,058.02 = 1,221.27 : x
  2. Step 2: Convert to fraction form
    2,215.93/3,058.02 = 1,221.27/x
  3. Step 3: Cross multiply
    2,215.93x = 3,058.02 × 1,221.27
  4. Step 4: Simplify right side
    2,215.93x = 3,734,668.09
  5. Step 5: Solve for x
    x = 3,734,668.09/2,215.93
  6. Step 6: Final answer
    x = 1,685.37

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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.