Home / 5,412.87-8,119.44-1,517.58

Finding the Fourth Proportional to 5,412.87, 8,119.44 and 1,517.58

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Solution

The fourth proportional to 5,412.87, 8,119.44 and 1,517.58 is: 2,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.87 : 8,119.44 = 1,517.58 : x
  2. Step 2: Convert to fraction form
    5,412.87/8,119.44 = 1,517.58/x
  3. Step 3: Cross multiply
    5,412.87x = 8,119.44 × 1,517.58
  4. Step 4: Simplify right side
    5,412.87x = 12,321,899.76
  5. Step 5: Solve for x
    x = 12,321,899.76/5,412.87
  6. Step 6: Final answer
    x = 2,276.41

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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.