Home / 5,317.35-7,977.73-1,620.29

Finding the Fourth Proportional to 5,317.35, 7,977.73 and 1,620.29

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Solution

The fourth proportional to 5,317.35, 7,977.73 and 1,620.29 is: 2,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.35 : 7,977.73 = 1,620.29 : x
  2. Step 2: Convert to fraction form
    5,317.35/7,977.73 = 1,620.29/x
  3. Step 3: Cross multiply
    5,317.35x = 7,977.73 × 1,620.29
  4. Step 4: Simplify right side
    5,317.35x = 12,926,236.14
  5. Step 5: Solve for x
    x = 12,926,236.14/5,317.35
  6. Step 6: Final answer
    x = 2,430.95

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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.