Home / 2,685.97-3,706.55-1,507.09

Finding the Fourth Proportional to 2,685.97, 3,706.55 and 1,507.09

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Solution

The fourth proportional to 2,685.97, 3,706.55 and 1,507.09 is: 2,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.97 : 3,706.55 = 1,507.09 : x
  2. Step 2: Convert to fraction form
    2,685.97/3,706.55 = 1,507.09/x
  3. Step 3: Cross multiply
    2,685.97x = 3,706.55 × 1,507.09
  4. Step 4: Simplify right side
    2,685.97x = 5,586,085.91
  5. Step 5: Solve for x
    x = 5,586,085.91/2,685.97
  6. Step 6: Final answer
    x = 2,079.73

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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.