Home / 2,198.80-3,030.54-1,887.76

Finding the Fourth Proportional to 2,198.80, 3,030.54 and 1,887.76

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Solution

The fourth proportional to 2,198.80, 3,030.54 and 1,887.76 is: 2,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.80 : 3,030.54 = 1,887.76 : x
  2. Step 2: Convert to fraction form
    2,198.80/3,030.54 = 1,887.76/x
  3. Step 3: Cross multiply
    2,198.80x = 3,030.54 × 1,887.76
  4. Step 4: Simplify right side
    2,198.80x = 5,720,932.19
  5. Step 5: Solve for x
    x = 5,720,932.19/2,198.80
  6. Step 6: Final answer
    x = 2,601.84

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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.