Home / 2,317.75-3,198.35-1,322.87

Finding the Fourth Proportional to 2,317.75, 3,198.35 and 1,322.87

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Solution

The fourth proportional to 2,317.75, 3,198.35 and 1,322.87 is: 1,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.75 : 3,198.35 = 1,322.87 : x
  2. Step 2: Convert to fraction form
    2,317.75/3,198.35 = 1,322.87/x
  3. Step 3: Cross multiply
    2,317.75x = 3,198.35 × 1,322.87
  4. Step 4: Simplify right side
    2,317.75x = 4,230,988.58
  5. Step 5: Solve for x
    x = 4,230,988.58/2,317.75
  6. Step 6: Final answer
    x = 1,825.47

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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.