Home / 5,412.86-8,119.58-1,517.57

Finding the Fourth Proportional to 5,412.86, 8,119.58 and 1,517.57

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Solution

The fourth proportional to 5,412.86, 8,119.58 and 1,517.57 is: 2,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.86 : 8,119.58 = 1,517.57 : x
  2. Step 2: Convert to fraction form
    5,412.86/8,119.58 = 1,517.57/x
  3. Step 3: Cross multiply
    5,412.86x = 8,119.58 × 1,517.57
  4. Step 4: Simplify right side
    5,412.86x = 12,322,034.81
  5. Step 5: Solve for x
    x = 12,322,034.81/5,412.86
  6. Step 6: Final answer
    x = 2,276.44

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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.