Home / 4,939.91-6,815.10-3,146.92

Finding the Fourth Proportional to 4,939.91, 6,815.10 and 3,146.92

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Solution

The fourth proportional to 4,939.91, 6,815.10 and 3,146.92 is: 4,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.91 : 6,815.10 = 3,146.92 : x
  2. Step 2: Convert to fraction form
    4,939.91/6,815.10 = 3,146.92/x
  3. Step 3: Cross multiply
    4,939.91x = 6,815.10 × 3,146.92
  4. Step 4: Simplify right side
    4,939.91x = 21,446,574.49
  5. Step 5: Solve for x
    x = 21,446,574.49/4,939.91
  6. Step 6: Final answer
    x = 4,341.49

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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.