Home / 2,995.58-4,133.78-2,112.57

Finding the Fourth Proportional to 2,995.58, 4,133.78 and 2,112.57

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Solution

The fourth proportional to 2,995.58, 4,133.78 and 2,112.57 is: 2,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.58 : 4,133.78 = 2,112.57 : x
  2. Step 2: Convert to fraction form
    2,995.58/4,133.78 = 2,112.57/x
  3. Step 3: Cross multiply
    2,995.58x = 4,133.78 × 2,112.57
  4. Step 4: Simplify right side
    2,995.58x = 8,732,904.90
  5. Step 5: Solve for x
    x = 8,732,904.90/2,995.58
  6. Step 6: Final answer
    x = 2,915.27

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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.