Home / 4,974.92-6,866.34-2,879

Finding the Fourth Proportional to 4,974.92, 6,866.34 and 2,879

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Solution

The fourth proportional to 4,974.92, 6,866.34 and 2,879 is: 3,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,974.92 : 6,866.34 = 2,879 : x
  2. Step 2: Convert to fraction form
    4,974.92/6,866.34 = 2,879/x
  3. Step 3: Cross multiply
    4,974.92x = 6,866.34 × 2,879
  4. Step 4: Simplify right side
    4,974.92x = 19,768,192.86
  5. Step 5: Solve for x
    x = 19,768,192.86/4,974.92
  6. Step 6: Final answer
    x = 3,973.57

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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.