Home / 5,318.94-7,340.28-3,081.60

Finding the Fourth Proportional to 5,318.94, 7,340.28 and 3,081.60

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Solution

The fourth proportional to 5,318.94, 7,340.28 and 3,081.60 is: 4,252.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.94 : 7,340.28 = 3,081.60 : x
  2. Step 2: Convert to fraction form
    5,318.94/7,340.28 = 3,081.60/x
  3. Step 3: Cross multiply
    5,318.94x = 7,340.28 × 3,081.60
  4. Step 4: Simplify right side
    5,318.94x = 22,619,806.85
  5. Step 5: Solve for x
    x = 22,619,806.85/5,318.94
  6. Step 6: Final answer
    x = 4,252.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.