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Finding the Fourth Proportional to 3,317.98, 4,976.98 and 3,151.69

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Solution

The fourth proportional to 3,317.98, 4,976.98 and 3,151.69 is: 4,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.98 : 4,976.98 = 3,151.69 : x
  2. Step 2: Convert to fraction form
    3,317.98/4,976.98 = 3,151.69/x
  3. Step 3: Cross multiply
    3,317.98x = 4,976.98 × 3,151.69
  4. Step 4: Simplify right side
    3,317.98x = 15,685,898.10
  5. Step 5: Solve for x
    x = 15,685,898.10/3,317.98
  6. Step 6: Final answer
    x = 4,727.54

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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.