Home / 2,961.99-4,085.37-1,900.08

Finding the Fourth Proportional to 2,961.99, 4,085.37 and 1,900.08

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Solution

The fourth proportional to 2,961.99, 4,085.37 and 1,900.08 is: 2,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.99 : 4,085.37 = 1,900.08 : x
  2. Step 2: Convert to fraction form
    2,961.99/4,085.37 = 1,900.08/x
  3. Step 3: Cross multiply
    2,961.99x = 4,085.37 × 1,900.08
  4. Step 4: Simplify right side
    2,961.99x = 7,762,529.83
  5. Step 5: Solve for x
    x = 7,762,529.83/2,961.99
  6. Step 6: Final answer
    x = 2,620.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.