Home / 2,955.42-4,079.97-1,960.20

Finding the Fourth Proportional to 2,955.42, 4,079.97 and 1,960.20

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Solution

The fourth proportional to 2,955.42, 4,079.97 and 1,960.20 is: 2,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.42 : 4,079.97 = 1,960.20 : x
  2. Step 2: Convert to fraction form
    2,955.42/4,079.97 = 1,960.20/x
  3. Step 3: Cross multiply
    2,955.42x = 4,079.97 × 1,960.20
  4. Step 4: Simplify right side
    2,955.42x = 7,997,557.19
  5. Step 5: Solve for x
    x = 7,997,557.19/2,955.42
  6. Step 6: Final answer
    x = 2,706.06

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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.