Home / 3,459.79-5,192.78-1,611.95

Finding the Fourth Proportional to 3,459.79, 5,192.78 and 1,611.95

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Solution

The fourth proportional to 3,459.79, 5,192.78 and 1,611.95 is: 2,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.79 : 5,192.78 = 1,611.95 : x
  2. Step 2: Convert to fraction form
    3,459.79/5,192.78 = 1,611.95/x
  3. Step 3: Cross multiply
    3,459.79x = 5,192.78 × 1,611.95
  4. Step 4: Simplify right side
    3,459.79x = 8,370,501.72
  5. Step 5: Solve for x
    x = 8,370,501.72/3,459.79
  6. Step 6: Final answer
    x = 2,419.37

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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.