Home / 5,477.56-8,211.64-2,515

Finding the Fourth Proportional to 5,477.56, 8,211.64 and 2,515

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Solution

The fourth proportional to 5,477.56, 8,211.64 and 2,515 is: 3,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.56 : 8,211.64 = 2,515 : x
  2. Step 2: Convert to fraction form
    5,477.56/8,211.64 = 2,515/x
  3. Step 3: Cross multiply
    5,477.56x = 8,211.64 × 2,515
  4. Step 4: Simplify right side
    5,477.56x = 20,652,274.60
  5. Step 5: Solve for x
    x = 20,652,274.60/5,477.56
  6. Step 6: Final answer
    x = 3,770.34

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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.