Home / 2,218.11-3,058.14-1,818.30

Finding the Fourth Proportional to 2,218.11, 3,058.14 and 1,818.30

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Solution

The fourth proportional to 2,218.11, 3,058.14 and 1,818.30 is: 2,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.11 : 3,058.14 = 1,818.30 : x
  2. Step 2: Convert to fraction form
    2,218.11/3,058.14 = 1,818.30/x
  3. Step 3: Cross multiply
    2,218.11x = 3,058.14 × 1,818.30
  4. Step 4: Simplify right side
    2,218.11x = 5,560,615.96
  5. Step 5: Solve for x
    x = 5,560,615.96/2,218.11
  6. Step 6: Final answer
    x = 2,506.92

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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.