Home / 5,415.66-8,124.71-1,718.11

Finding the Fourth Proportional to 5,415.66, 8,124.71 and 1,718.11

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Solution

The fourth proportional to 5,415.66, 8,124.71 and 1,718.11 is: 2,577.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.66 : 8,124.71 = 1,718.11 : x
  2. Step 2: Convert to fraction form
    5,415.66/8,124.71 = 1,718.11/x
  3. Step 3: Cross multiply
    5,415.66x = 8,124.71 × 1,718.11
  4. Step 4: Simplify right side
    5,415.66x = 13,959,147.06
  5. Step 5: Solve for x
    x = 13,959,147.06/5,415.66
  6. Step 6: Final answer
    x = 2,577.55

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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.