Home / 2,680.08-3,696.73-2,119.66

Finding the Fourth Proportional to 2,680.08, 3,696.73 and 2,119.66

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Solution

The fourth proportional to 2,680.08, 3,696.73 and 2,119.66 is: 2,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.08 : 3,696.73 = 2,119.66 : x
  2. Step 2: Convert to fraction form
    2,680.08/3,696.73 = 2,119.66/x
  3. Step 3: Cross multiply
    2,680.08x = 3,696.73 × 2,119.66
  4. Step 4: Simplify right side
    2,680.08x = 7,835,810.71
  5. Step 5: Solve for x
    x = 7,835,810.71/2,680.08
  6. Step 6: Final answer
    x = 2,923.72

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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.