Home / 3,427.09-5,140.50-1,235.86

Finding the Fourth Proportional to 3,427.09, 5,140.50 and 1,235.86

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Solution

The fourth proportional to 3,427.09, 5,140.50 and 1,235.86 is: 1,853.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.09 : 5,140.50 = 1,235.86 : x
  2. Step 2: Convert to fraction form
    3,427.09/5,140.50 = 1,235.86/x
  3. Step 3: Cross multiply
    3,427.09x = 5,140.50 × 1,235.86
  4. Step 4: Simplify right side
    3,427.09x = 6,352,938.33
  5. Step 5: Solve for x
    x = 6,352,938.33/3,427.09
  6. Step 6: Final answer
    x = 1,853.74

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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.