Home / 4,879.91-6,731.60-2,890.08

Finding the Fourth Proportional to 4,879.91, 6,731.60 and 2,890.08

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Solution

The fourth proportional to 4,879.91, 6,731.60 and 2,890.08 is: 3,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.91 : 6,731.60 = 2,890.08 : x
  2. Step 2: Convert to fraction form
    4,879.91/6,731.60 = 2,890.08/x
  3. Step 3: Cross multiply
    4,879.91x = 6,731.60 × 2,890.08
  4. Step 4: Simplify right side
    4,879.91x = 19,454,848.08
  5. Step 5: Solve for x
    x = 19,454,848.08/4,879.91
  6. Step 6: Final answer
    x = 3,986.73

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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.