Home / 2,412.12-3,328.80-1,694.40

Finding the Fourth Proportional to 2,412.12, 3,328.80 and 1,694.40

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Solution

The fourth proportional to 2,412.12, 3,328.80 and 1,694.40 is: 2,338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.12 : 3,328.80 = 1,694.40 : x
  2. Step 2: Convert to fraction form
    2,412.12/3,328.80 = 1,694.40/x
  3. Step 3: Cross multiply
    2,412.12x = 3,328.80 × 1,694.40
  4. Step 4: Simplify right side
    2,412.12x = 5,640,318.72
  5. Step 5: Solve for x
    x = 5,640,318.72/2,412.12
  6. Step 6: Final answer
    x = 2,338.32

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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.