Home / 5,216.26-7,824.42-1,320.67

Finding the Fourth Proportional to 5,216.26, 7,824.42 and 1,320.67

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Solution

The fourth proportional to 5,216.26, 7,824.42 and 1,320.67 is: 1,981.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.26 : 7,824.42 = 1,320.67 : x
  2. Step 2: Convert to fraction form
    5,216.26/7,824.42 = 1,320.67/x
  3. Step 3: Cross multiply
    5,216.26x = 7,824.42 × 1,320.67
  4. Step 4: Simplify right side
    5,216.26x = 10,333,493.02
  5. Step 5: Solve for x
    x = 10,333,493.02/5,216.26
  6. Step 6: Final answer
    x = 1,981.02

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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.