Home / 7,210.62-10,815.93-3,317.76

Finding the Fourth Proportional to 7,210.62, 10,815.93 and 3,317.76

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Solution

The fourth proportional to 7,210.62, 10,815.93 and 3,317.76 is: 4,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.62 : 10,815.93 = 3,317.76 : x
  2. Step 2: Convert to fraction form
    7,210.62/10,815.93 = 3,317.76/x
  3. Step 3: Cross multiply
    7,210.62x = 10,815.93 × 3,317.76
  4. Step 4: Simplify right side
    7,210.62x = 35,884,659.92
  5. Step 5: Solve for x
    x = 35,884,659.92/7,210.62
  6. Step 6: Final answer
    x = 4,976.64

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Similar ratio
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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.