Home / 5,216.55-7,814.39-3,135.43

Finding the Fourth Proportional to 5,216.55, 7,814.39 and 3,135.43

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Solution

The fourth proportional to 5,216.55, 7,814.39 and 3,135.43 is: 4,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.55 : 7,814.39 = 3,135.43 : x
  2. Step 2: Convert to fraction form
    5,216.55/7,814.39 = 3,135.43/x
  3. Step 3: Cross multiply
    5,216.55x = 7,814.39 × 3,135.43
  4. Step 4: Simplify right side
    5,216.55x = 24,501,440.61
  5. Step 5: Solve for x
    x = 24,501,440.61/5,216.55
  6. Step 6: Final answer
    x = 4,696.87

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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.