Home / 4,139.94-6,186.26-3,147.30

Finding the Fourth Proportional to 4,139.94, 6,186.26 and 3,147.30

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Solution

The fourth proportional to 4,139.94, 6,186.26 and 3,147.30 is: 4,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.94 : 6,186.26 = 3,147.30 : x
  2. Step 2: Convert to fraction form
    4,139.94/6,186.26 = 3,147.30/x
  3. Step 3: Cross multiply
    4,139.94x = 6,186.26 × 3,147.30
  4. Step 4: Simplify right side
    4,139.94x = 19,470,000.36
  5. Step 5: Solve for x
    x = 19,470,000.36/4,139.94
  6. Step 6: Final answer
    x = 4,702.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.