Home / 5,427.48-8,142.25-2,140.60

Finding the Fourth Proportional to 5,427.48, 8,142.25 and 2,140.60

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Solution

The fourth proportional to 5,427.48, 8,142.25 and 2,140.60 is: 3,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.48 : 8,142.25 = 2,140.60 : x
  2. Step 2: Convert to fraction form
    5,427.48/8,142.25 = 2,140.60/x
  3. Step 3: Cross multiply
    5,427.48x = 8,142.25 × 2,140.60
  4. Step 4: Simplify right side
    5,427.48x = 17,429,310.80
  5. Step 5: Solve for x
    x = 17,429,310.80/5,427.48
  6. Step 6: Final answer
    x = 3,211.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.