Home / 3,853.36-5,316.96-2,281.60

Finding the Fourth Proportional to 3,853.36, 5,316.96 and 2,281.60

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Solution

The fourth proportional to 3,853.36, 5,316.96 and 2,281.60 is: 3,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.36 : 5,316.96 = 2,281.60 : x
  2. Step 2: Convert to fraction form
    3,853.36/5,316.96 = 2,281.60/x
  3. Step 3: Cross multiply
    3,853.36x = 5,316.96 × 2,281.60
  4. Step 4: Simplify right side
    3,853.36x = 12,131,175.94
  5. Step 5: Solve for x
    x = 12,131,175.94/3,853.36
  6. Step 6: Final answer
    x = 3,148.21

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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.