Home / 3,520.40-5,276.94-1,178.64

Finding the Fourth Proportional to 3,520.40, 5,276.94 and 1,178.64

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Solution

The fourth proportional to 3,520.40, 5,276.94 and 1,178.64 is: 1,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.40 : 5,276.94 = 1,178.64 : x
  2. Step 2: Convert to fraction form
    3,520.40/5,276.94 = 1,178.64/x
  3. Step 3: Cross multiply
    3,520.40x = 5,276.94 × 1,178.64
  4. Step 4: Simplify right side
    3,520.40x = 6,219,612.56
  5. Step 5: Solve for x
    x = 6,219,612.56/3,520.40
  6. Step 6: Final answer
    x = 1,766.73

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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.