Home / 3,105.12-4,657.20-2,933.76

Finding the Fourth Proportional to 3,105.12, 4,657.20 and 2,933.76

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Solution

The fourth proportional to 3,105.12, 4,657.20 and 2,933.76 is: 4,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.12 : 4,657.20 = 2,933.76 : x
  2. Step 2: Convert to fraction form
    3,105.12/4,657.20 = 2,933.76/x
  3. Step 3: Cross multiply
    3,105.12x = 4,657.20 × 2,933.76
  4. Step 4: Simplify right side
    3,105.12x = 13,663,107.07
  5. Step 5: Solve for x
    x = 13,663,107.07/3,105.12
  6. Step 6: Final answer
    x = 4,400.19

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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.