Home / 5,421.45-8,126.63-3,076.50

Finding the Fourth Proportional to 5,421.45, 8,126.63 and 3,076.50

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Solution

The fourth proportional to 5,421.45, 8,126.63 and 3,076.50 is: 4,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.45 : 8,126.63 = 3,076.50 : x
  2. Step 2: Convert to fraction form
    5,421.45/8,126.63 = 3,076.50/x
  3. Step 3: Cross multiply
    5,421.45x = 8,126.63 × 3,076.50
  4. Step 4: Simplify right side
    5,421.45x = 25,001,577.20
  5. Step 5: Solve for x
    x = 25,001,577.20/5,421.45
  6. Step 6: Final answer
    x = 4,611.60

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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.