Home / 2,680.29-3,698.66-1,485.24

Finding the Fourth Proportional to 2,680.29, 3,698.66 and 1,485.24

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Solution

The fourth proportional to 2,680.29, 3,698.66 and 1,485.24 is: 2,049.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.29 : 3,698.66 = 1,485.24 : x
  2. Step 2: Convert to fraction form
    2,680.29/3,698.66 = 1,485.24/x
  3. Step 3: Cross multiply
    2,680.29x = 3,698.66 × 1,485.24
  4. Step 4: Simplify right side
    2,680.29x = 5,493,397.78
  5. Step 5: Solve for x
    x = 5,493,397.78/2,680.29
  6. Step 6: Final answer
    x = 2,049.55

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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.