Home / 2,197.11-3,031.32-1,357.95

Finding the Fourth Proportional to 2,197.11, 3,031.32 and 1,357.95

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Solution

The fourth proportional to 2,197.11, 3,031.32 and 1,357.95 is: 1,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.11 : 3,031.32 = 1,357.95 : x
  2. Step 2: Convert to fraction form
    2,197.11/3,031.32 = 1,357.95/x
  3. Step 3: Cross multiply
    2,197.11x = 3,031.32 × 1,357.95
  4. Step 4: Simplify right side
    2,197.11x = 4,116,380.99
  5. Step 5: Solve for x
    x = 4,116,380.99/2,197.11
  6. Step 6: Final answer
    x = 1,873.54

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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.