Home / 3,847.98-5,307.75-2,668.62

Finding the Fourth Proportional to 3,847.98, 5,307.75 and 2,668.62

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Solution

The fourth proportional to 3,847.98, 5,307.75 and 2,668.62 is: 3,680.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.98 : 5,307.75 = 2,668.62 : x
  2. Step 2: Convert to fraction form
    3,847.98/5,307.75 = 2,668.62/x
  3. Step 3: Cross multiply
    3,847.98x = 5,307.75 × 2,668.62
  4. Step 4: Simplify right side
    3,847.98x = 14,164,367.81
  5. Step 5: Solve for x
    x = 14,164,367.81/3,847.98
  6. Step 6: Final answer
    x = 3,680.99

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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.