Home / 2,960.68-4,085.14-1,899.40

Finding the Fourth Proportional to 2,960.68, 4,085.14 and 1,899.40

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Solution

The fourth proportional to 2,960.68, 4,085.14 and 1,899.40 is: 2,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.68 : 4,085.14 = 1,899.40 : x
  2. Step 2: Convert to fraction form
    2,960.68/4,085.14 = 1,899.40/x
  3. Step 3: Cross multiply
    2,960.68x = 4,085.14 × 1,899.40
  4. Step 4: Simplify right side
    2,960.68x = 7,759,314.92
  5. Step 5: Solve for x
    x = 7,759,314.92/2,960.68
  6. Step 6: Final answer
    x = 2,620.79

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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.