Home / 3,168.72-4,753.08-1,438.56

Finding the Fourth Proportional to 3,168.72, 4,753.08 and 1,438.56

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Solution

The fourth proportional to 3,168.72, 4,753.08 and 1,438.56 is: 2,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.72 : 4,753.08 = 1,438.56 : x
  2. Step 2: Convert to fraction form
    3,168.72/4,753.08 = 1,438.56/x
  3. Step 3: Cross multiply
    3,168.72x = 4,753.08 × 1,438.56
  4. Step 4: Simplify right side
    3,168.72x = 6,837,590.76
  5. Step 5: Solve for x
    x = 6,837,590.76/3,168.72
  6. Step 6: Final answer
    x = 2,157.84

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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.