Home / 3,427.19-5,140.20-1,235.60

Finding the Fourth Proportional to 3,427.19, 5,140.20 and 1,235.60

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Solution

The fourth proportional to 3,427.19, 5,140.20 and 1,235.60 is: 1,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.19 : 5,140.20 = 1,235.60 : x
  2. Step 2: Convert to fraction form
    3,427.19/5,140.20 = 1,235.60/x
  3. Step 3: Cross multiply
    3,427.19x = 5,140.20 × 1,235.60
  4. Step 4: Simplify right side
    3,427.19x = 6,351,243.97
  5. Step 5: Solve for x
    x = 6,351,243.97/3,427.19
  6. Step 6: Final answer
    x = 1,853.19

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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.