Home / 3,318.09-4,578.85-1,955.36

Finding the Fourth Proportional to 3,318.09, 4,578.85 and 1,955.36

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Solution

The fourth proportional to 3,318.09, 4,578.85 and 1,955.36 is: 2,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.09 : 4,578.85 = 1,955.36 : x
  2. Step 2: Convert to fraction form
    3,318.09/4,578.85 = 1,955.36/x
  3. Step 3: Cross multiply
    3,318.09x = 4,578.85 × 1,955.36
  4. Step 4: Simplify right side
    3,318.09x = 8,953,300.14
  5. Step 5: Solve for x
    x = 8,953,300.14/3,318.09
  6. Step 6: Final answer
    x = 2,698.33

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Similar ratio
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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.