Home / 5,318.00-7,977.25-1,620.77

Finding the Fourth Proportional to 5,318.00, 7,977.25 and 1,620.77

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Solution

The fourth proportional to 5,318.00, 7,977.25 and 1,620.77 is: 2,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.00 : 7,977.25 = 1,620.77 : x
  2. Step 2: Convert to fraction form
    5,318.00/7,977.25 = 1,620.77/x
  3. Step 3: Cross multiply
    5,318.00x = 7,977.25 × 1,620.77
  4. Step 4: Simplify right side
    5,318.00x = 12,929,309.13
  5. Step 5: Solve for x
    x = 12,929,309.13/5,318.00
  6. Step 6: Final answer
    x = 2,431.24

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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.