Home / 2,317.38-3,198.36-1,478.43

Finding the Fourth Proportional to 2,317.38, 3,198.36 and 1,478.43

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Solution

The fourth proportional to 2,317.38, 3,198.36 and 1,478.43 is: 2,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.38 : 3,198.36 = 1,478.43 : x
  2. Step 2: Convert to fraction form
    2,317.38/3,198.36 = 1,478.43/x
  3. Step 3: Cross multiply
    2,317.38x = 3,198.36 × 1,478.43
  4. Step 4: Simplify right side
    2,317.38x = 4,728,551.37
  5. Step 5: Solve for x
    x = 4,728,551.37/2,317.38
  6. Step 6: Final answer
    x = 2,040.47

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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.