Home / 3,399.67-5,098.93-1,320.60

Finding the Fourth Proportional to 3,399.67, 5,098.93 and 1,320.60

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Solution

The fourth proportional to 3,399.67, 5,098.93 and 1,320.60 is: 1,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.67 : 5,098.93 = 1,320.60 : x
  2. Step 2: Convert to fraction form
    3,399.67/5,098.93 = 1,320.60/x
  3. Step 3: Cross multiply
    3,399.67x = 5,098.93 × 1,320.60
  4. Step 4: Simplify right side
    3,399.67x = 6,733,643.66
  5. Step 5: Solve for x
    x = 6,733,643.66/3,399.67
  6. Step 6: Final answer
    x = 1,980.68

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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.