Home / 5,415.44-8,124.19-1,718.60

Finding the Fourth Proportional to 5,415.44, 8,124.19 and 1,718.60

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Solution

The fourth proportional to 5,415.44, 8,124.19 and 1,718.60 is: 2,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.44 : 8,124.19 = 1,718.60 : x
  2. Step 2: Convert to fraction form
    5,415.44/8,124.19 = 1,718.60/x
  3. Step 3: Cross multiply
    5,415.44x = 8,124.19 × 1,718.60
  4. Step 4: Simplify right side
    5,415.44x = 13,962,248.95
  5. Step 5: Solve for x
    x = 13,962,248.95/5,415.44
  6. Step 6: Final answer
    x = 2,578.23

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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.