Home / 5,716.86-8,574.66-1,821.57

Finding the Fourth Proportional to 5,716.86, 8,574.66 and 1,821.57

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Solution

The fourth proportional to 5,716.86, 8,574.66 and 1,821.57 is: 2,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.86 : 8,574.66 = 1,821.57 : x
  2. Step 2: Convert to fraction form
    5,716.86/8,574.66 = 1,821.57/x
  3. Step 3: Cross multiply
    5,716.86x = 8,574.66 × 1,821.57
  4. Step 4: Simplify right side
    5,716.86x = 15,619,343.42
  5. Step 5: Solve for x
    x = 15,619,343.42/5,716.86
  6. Step 6: Final answer
    x = 2,732.15

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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.