Home / 3,105.60-4,658.31-1,025.70

Finding the Fourth Proportional to 3,105.60, 4,658.31 and 1,025.70

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Solution

The fourth proportional to 3,105.60, 4,658.31 and 1,025.70 is: 1,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.60 : 4,658.31 = 1,025.70 : x
  2. Step 2: Convert to fraction form
    3,105.60/4,658.31 = 1,025.70/x
  3. Step 3: Cross multiply
    3,105.60x = 4,658.31 × 1,025.70
  4. Step 4: Simplify right side
    3,105.60x = 4,778,028.57
  5. Step 5: Solve for x
    x = 4,778,028.57/3,105.60
  6. Step 6: Final answer
    x = 1,538.52

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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.