Home / 5,415.18-8,126.84-3,656.02

Finding the Fourth Proportional to 5,415.18, 8,126.84 and 3,656.02

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Solution

The fourth proportional to 5,415.18, 8,126.84 and 3,656.02 is: 5,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.18 : 8,126.84 = 3,656.02 : x
  2. Step 2: Convert to fraction form
    5,415.18/8,126.84 = 3,656.02/x
  3. Step 3: Cross multiply
    5,415.18x = 8,126.84 × 3,656.02
  4. Step 4: Simplify right side
    5,415.18x = 29,711,889.58
  5. Step 5: Solve for x
    x = 29,711,889.58/5,415.18
  6. Step 6: Final answer
    x = 5,486.78

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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.