Home / 5,226.79-7,212.84-2,836.76

Finding the Fourth Proportional to 5,226.79, 7,212.84 and 2,836.76

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Solution

The fourth proportional to 5,226.79, 7,212.84 and 2,836.76 is: 3,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.79 : 7,212.84 = 2,836.76 : x
  2. Step 2: Convert to fraction form
    5,226.79/7,212.84 = 2,836.76/x
  3. Step 3: Cross multiply
    5,226.79x = 7,212.84 × 2,836.76
  4. Step 4: Simplify right side
    5,226.79x = 20,461,117.91
  5. Step 5: Solve for x
    x = 20,461,117.91/5,226.79
  6. Step 6: Final answer
    x = 3,914.67

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Half scale
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Double scale
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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.