Home / 2,912.90-4,366.51-1,611.63

Finding the Fourth Proportional to 2,912.90, 4,366.51 and 1,611.63

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Solution

The fourth proportional to 2,912.90, 4,366.51 and 1,611.63 is: 2,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.90 : 4,366.51 = 1,611.63 : x
  2. Step 2: Convert to fraction form
    2,912.90/4,366.51 = 1,611.63/x
  3. Step 3: Cross multiply
    2,912.90x = 4,366.51 × 1,611.63
  4. Step 4: Simplify right side
    2,912.90x = 7,037,194.48
  5. Step 5: Solve for x
    x = 7,037,194.48/2,912.90
  6. Step 6: Final answer
    x = 2,415.88

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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.