Home / 3,427.02-5,140.19-1,235.78

Finding the Fourth Proportional to 3,427.02, 5,140.19 and 1,235.78

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Solution

The fourth proportional to 3,427.02, 5,140.19 and 1,235.78 is: 1,853.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.02 : 5,140.19 = 1,235.78 : x
  2. Step 2: Convert to fraction form
    3,427.02/5,140.19 = 1,235.78/x
  3. Step 3: Cross multiply
    3,427.02x = 5,140.19 × 1,235.78
  4. Step 4: Simplify right side
    3,427.02x = 6,352,112.12
  5. Step 5: Solve for x
    x = 6,352,112.12/3,427.02
  6. Step 6: Final answer
    x = 1,853.54

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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.