Home / 5,427.19-8,138.96-3,784.51

Finding the Fourth Proportional to 5,427.19, 8,138.96 and 3,784.51

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Solution

The fourth proportional to 5,427.19, 8,138.96 and 3,784.51 is: 5,675.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.19 : 8,138.96 = 3,784.51 : x
  2. Step 2: Convert to fraction form
    5,427.19/8,138.96 = 3,784.51/x
  3. Step 3: Cross multiply
    5,427.19x = 8,138.96 × 3,784.51
  4. Step 4: Simplify right side
    5,427.19x = 30,801,975.51
  5. Step 5: Solve for x
    x = 30,801,975.51/5,427.19
  6. Step 6: Final answer
    x = 5,675.49

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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.