Home / 3,858.96-5,325.36-2,287.20

Finding the Fourth Proportional to 3,858.96, 5,325.36 and 2,287.20

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Solution

The fourth proportional to 3,858.96, 5,325.36 and 2,287.20 is: 3,156.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.96 : 5,325.36 = 2,287.20 : x
  2. Step 2: Convert to fraction form
    3,858.96/5,325.36 = 2,287.20/x
  3. Step 3: Cross multiply
    3,858.96x = 5,325.36 × 2,287.20
  4. Step 4: Simplify right side
    3,858.96x = 12,180,163.39
  5. Step 5: Solve for x
    x = 12,180,163.39/3,858.96
  6. Step 6: Final answer
    x = 3,156.33

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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.