Home / 4,879.80-6,732.99-2,890.58

Finding the Fourth Proportional to 4,879.80, 6,732.99 and 2,890.58

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Solution

The fourth proportional to 4,879.80, 6,732.99 and 2,890.58 is: 3,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.80 : 6,732.99 = 2,890.58 : x
  2. Step 2: Convert to fraction form
    4,879.80/6,732.99 = 2,890.58/x
  3. Step 3: Cross multiply
    4,879.80x = 6,732.99 × 2,890.58
  4. Step 4: Simplify right side
    4,879.80x = 19,462,212.57
  5. Step 5: Solve for x
    x = 19,462,212.57/4,879.80
  6. Step 6: Final answer
    x = 3,988.32

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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.