Home / 3,479.90-5,219.58-1,630.54

Finding the Fourth Proportional to 3,479.90, 5,219.58 and 1,630.54

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Solution

The fourth proportional to 3,479.90, 5,219.58 and 1,630.54 is: 2,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.90 : 5,219.58 = 1,630.54 : x
  2. Step 2: Convert to fraction form
    3,479.90/5,219.58 = 1,630.54/x
  3. Step 3: Cross multiply
    3,479.90x = 5,219.58 × 1,630.54
  4. Step 4: Simplify right side
    3,479.90x = 8,510,707.88
  5. Step 5: Solve for x
    x = 8,510,707.88/3,479.90
  6. Step 6: Final answer
    x = 2,445.68

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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.