Home / 3,858.85-5,325.22-2,090.46

Finding the Fourth Proportional to 3,858.85, 5,325.22 and 2,090.46

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Solution

The fourth proportional to 3,858.85, 5,325.22 and 2,090.46 is: 2,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.85 : 5,325.22 = 2,090.46 : x
  2. Step 2: Convert to fraction form
    3,858.85/5,325.22 = 2,090.46/x
  3. Step 3: Cross multiply
    3,858.85x = 5,325.22 × 2,090.46
  4. Step 4: Simplify right side
    3,858.85x = 11,132,159.40
  5. Step 5: Solve for x
    x = 11,132,159.40/3,858.85
  6. Step 6: Final answer
    x = 2,884.84

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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.