Home / 3,619.44-5,430.17-1,771.60

Finding the Fourth Proportional to 3,619.44, 5,430.17 and 1,771.60

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Solution

The fourth proportional to 3,619.44, 5,430.17 and 1,771.60 is: 2,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.44 : 5,430.17 = 1,771.60 : x
  2. Step 2: Convert to fraction form
    3,619.44/5,430.17 = 1,771.60/x
  3. Step 3: Cross multiply
    3,619.44x = 5,430.17 × 1,771.60
  4. Step 4: Simplify right side
    3,619.44x = 9,620,089.17
  5. Step 5: Solve for x
    x = 9,620,089.17/3,619.44
  6. Step 6: Final answer
    x = 2,657.89

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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.