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Finding the Fourth Proportional to 4,849.86, 7,281.24 and 2,879.13

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Solution

The fourth proportional to 4,849.86, 7,281.24 and 2,879.13 is: 4,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.86 : 7,281.24 = 2,879.13 : x
  2. Step 2: Convert to fraction form
    4,849.86/7,281.24 = 2,879.13/x
  3. Step 3: Cross multiply
    4,849.86x = 7,281.24 × 2,879.13
  4. Step 4: Simplify right side
    4,849.86x = 20,963,636.52
  5. Step 5: Solve for x
    x = 20,963,636.52/4,849.86
  6. Step 6: Final answer
    x = 4,322.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.