Home / 2,198.15-3,034.28-1,313.63

Finding the Fourth Proportional to 2,198.15, 3,034.28 and 1,313.63

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Solution

The fourth proportional to 2,198.15, 3,034.28 and 1,313.63 is: 1,813.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.15 : 3,034.28 = 1,313.63 : x
  2. Step 2: Convert to fraction form
    2,198.15/3,034.28 = 1,313.63/x
  3. Step 3: Cross multiply
    2,198.15x = 3,034.28 × 1,313.63
  4. Step 4: Simplify right side
    2,198.15x = 3,985,921.24
  5. Step 5: Solve for x
    x = 3,985,921.24/2,198.15
  6. Step 6: Final answer
    x = 1,813.31

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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.