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Finding the Fourth Proportional to 4,880.32, 7,307.52 and 3,949.44

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Solution

The fourth proportional to 4,880.32, 7,307.52 and 3,949.44 is: 5,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.32 : 7,307.52 = 3,949.44 : x
  2. Step 2: Convert to fraction form
    4,880.32/7,307.52 = 3,949.44/x
  3. Step 3: Cross multiply
    4,880.32x = 7,307.52 × 3,949.44
  4. Step 4: Simplify right side
    4,880.32x = 28,860,611.79
  5. Step 5: Solve for x
    x = 28,860,611.79/4,880.32
  6. Step 6: Final answer
    x = 5,913.67

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1.5x scale

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.