Home / 3,105.30-4,658.04-1,157.70

Finding the Fourth Proportional to 3,105.30, 4,658.04 and 1,157.70

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Solution

The fourth proportional to 3,105.30, 4,658.04 and 1,157.70 is: 1,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.30 : 4,658.04 = 1,157.70 : x
  2. Step 2: Convert to fraction form
    3,105.30/4,658.04 = 1,157.70/x
  3. Step 3: Cross multiply
    3,105.30x = 4,658.04 × 1,157.70
  4. Step 4: Simplify right side
    3,105.30x = 5,392,612.91
  5. Step 5: Solve for x
    x = 5,392,612.91/3,105.30
  6. Step 6: Final answer
    x = 1,736.58

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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.