Home / 5,320.27-7,980.86-1,622.54

Finding the Fourth Proportional to 5,320.27, 7,980.86 and 1,622.54

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Solution

The fourth proportional to 5,320.27, 7,980.86 and 1,622.54 is: 2,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.27 : 7,980.86 = 1,622.54 : x
  2. Step 2: Convert to fraction form
    5,320.27/7,980.86 = 1,622.54/x
  3. Step 3: Cross multiply
    5,320.27x = 7,980.86 × 1,622.54
  4. Step 4: Simplify right side
    5,320.27x = 12,949,224.68
  5. Step 5: Solve for x
    x = 12,949,224.68/5,320.27
  6. Step 6: Final answer
    x = 2,433.94

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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.