Home / 2,680.10-3,698.57-1,617.92

Finding the Fourth Proportional to 2,680.10, 3,698.57 and 1,617.92

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Solution

The fourth proportional to 2,680.10, 3,698.57 and 1,617.92 is: 2,232.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.10 : 3,698.57 = 1,617.92 : x
  2. Step 2: Convert to fraction form
    2,680.10/3,698.57 = 1,617.92/x
  3. Step 3: Cross multiply
    2,680.10x = 3,698.57 × 1,617.92
  4. Step 4: Simplify right side
    2,680.10x = 5,983,990.37
  5. Step 5: Solve for x
    x = 5,983,990.37/2,680.10
  6. Step 6: Final answer
    x = 2,232.75

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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.