Home / 7,212.62-10,818.93-3,319.76

Finding the Fourth Proportional to 7,212.62, 10,818.93 and 3,319.76

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Solution

The fourth proportional to 7,212.62, 10,818.93 and 3,319.76 is: 4,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.62 : 10,818.93 = 3,319.76 : x
  2. Step 2: Convert to fraction form
    7,212.62/10,818.93 = 3,319.76/x
  3. Step 3: Cross multiply
    7,212.62x = 10,818.93 × 3,319.76
  4. Step 4: Simplify right side
    7,212.62x = 35,916,251.06
  5. Step 5: Solve for x
    x = 35,916,251.06/7,212.62
  6. Step 6: Final answer
    x = 4,979.64

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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.