Home / 3,419.61-5,129.40-1,079.83

Finding the Fourth Proportional to 3,419.61, 5,129.40 and 1,079.83

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Solution

The fourth proportional to 3,419.61, 5,129.40 and 1,079.83 is: 1,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.61 : 5,129.40 = 1,079.83 : x
  2. Step 2: Convert to fraction form
    3,419.61/5,129.40 = 1,079.83/x
  3. Step 3: Cross multiply
    3,419.61x = 5,129.40 × 1,079.83
  4. Step 4: Simplify right side
    3,419.61x = 5,538,880.00
  5. Step 5: Solve for x
    x = 5,538,880.00/3,419.61
  6. Step 6: Final answer
    x = 1,619.74

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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.