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Finding the Fourth Proportional to 5,169.58, 7,751.13 and 3,412.72

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Solution

The fourth proportional to 5,169.58, 7,751.13 and 3,412.72 is: 5,116.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.58 : 7,751.13 = 3,412.72 : x
  2. Step 2: Convert to fraction form
    5,169.58/7,751.13 = 3,412.72/x
  3. Step 3: Cross multiply
    5,169.58x = 7,751.13 × 3,412.72
  4. Step 4: Simplify right side
    5,169.58x = 26,452,436.37
  5. Step 5: Solve for x
    x = 26,452,436.37/5,169.58
  6. Step 6: Final answer
    x = 5,116.94

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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.