Home / 5,317.94-7,977.22-1,620.30

Finding the Fourth Proportional to 5,317.94, 7,977.22 and 1,620.30

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Solution

The fourth proportional to 5,317.94, 7,977.22 and 1,620.30 is: 2,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.94 : 7,977.22 = 1,620.30 : x
  2. Step 2: Convert to fraction form
    5,317.94/7,977.22 = 1,620.30/x
  3. Step 3: Cross multiply
    5,317.94x = 7,977.22 × 1,620.30
  4. Step 4: Simplify right side
    5,317.94x = 12,925,489.57
  5. Step 5: Solve for x
    x = 12,925,489.57/5,317.94
  6. Step 6: Final answer
    x = 2,430.54

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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.