Home / 3,427.72-5,141.87-1,347.57

Finding the Fourth Proportional to 3,427.72, 5,141.87 and 1,347.57

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Solution

The fourth proportional to 3,427.72, 5,141.87 and 1,347.57 is: 2,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.72 : 5,141.87 = 1,347.57 : x
  2. Step 2: Convert to fraction form
    3,427.72/5,141.87 = 1,347.57/x
  3. Step 3: Cross multiply
    3,427.72x = 5,141.87 × 1,347.57
  4. Step 4: Simplify right side
    3,427.72x = 6,929,029.76
  5. Step 5: Solve for x
    x = 6,929,029.76/3,427.72
  6. Step 6: Final answer
    x = 2,021.47

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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.