Home / 4,188.72-6,280.64-2,239.86

Finding the Fourth Proportional to 4,188.72, 6,280.64 and 2,239.86

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Solution

The fourth proportional to 4,188.72, 6,280.64 and 2,239.86 is: 3,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.72 : 6,280.64 = 2,239.86 : x
  2. Step 2: Convert to fraction form
    4,188.72/6,280.64 = 2,239.86/x
  3. Step 3: Cross multiply
    4,188.72x = 6,280.64 × 2,239.86
  4. Step 4: Simplify right side
    4,188.72x = 14,067,754.31
  5. Step 5: Solve for x
    x = 14,067,754.31/4,188.72
  6. Step 6: Final answer
    x = 3,358.49

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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.