Home / 5,280.21-7,286.62-3,184.34

Finding the Fourth Proportional to 5,280.21, 7,286.62 and 3,184.34

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Solution

The fourth proportional to 5,280.21, 7,286.62 and 3,184.34 is: 4,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.21 : 7,286.62 = 3,184.34 : x
  2. Step 2: Convert to fraction form
    5,280.21/7,286.62 = 3,184.34/x
  3. Step 3: Cross multiply
    5,280.21x = 7,286.62 × 3,184.34
  4. Step 4: Simplify right side
    5,280.21x = 23,203,039.10
  5. Step 5: Solve for x
    x = 23,203,039.10/5,280.21
  6. Step 6: Final answer
    x = 4,394.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.