Home / 2,216.85-3,058.21-1,377.28

Finding the Fourth Proportional to 2,216.85, 3,058.21 and 1,377.28

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Solution

The fourth proportional to 2,216.85, 3,058.21 and 1,377.28 is: 1,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.85 : 3,058.21 = 1,377.28 : x
  2. Step 2: Convert to fraction form
    2,216.85/3,058.21 = 1,377.28/x
  3. Step 3: Cross multiply
    2,216.85x = 3,058.21 × 1,377.28
  4. Step 4: Simplify right side
    2,216.85x = 4,212,004.58
  5. Step 5: Solve for x
    x = 4,212,004.58/2,216.85
  6. Step 6: Final answer
    x = 1,900.00

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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.