Home / 3,050.40-4,564.80-2,121.60

Finding the Fourth Proportional to 3,050.40, 4,564.80 and 2,121.60

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Solution

The fourth proportional to 3,050.40, 4,564.80 and 2,121.60 is: 3,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,050.40 : 4,564.80 = 2,121.60 : x
  2. Step 2: Convert to fraction form
    3,050.40/4,564.80 = 2,121.60/x
  3. Step 3: Cross multiply
    3,050.40x = 4,564.80 × 2,121.60
  4. Step 4: Simplify right side
    3,050.40x = 9,684,679.68
  5. Step 5: Solve for x
    x = 9,684,679.68/3,050.40
  6. Step 6: Final answer
    x = 3,174.89

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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.