Home / 2,211.56-3,047.92-2,148.36

Finding the Fourth Proportional to 2,211.56, 3,047.92 and 2,148.36

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Solution

The fourth proportional to 2,211.56, 3,047.92 and 2,148.36 is: 2,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.56 : 3,047.92 = 2,148.36 : x
  2. Step 2: Convert to fraction form
    2,211.56/3,047.92 = 2,148.36/x
  3. Step 3: Cross multiply
    2,211.56x = 3,047.92 × 2,148.36
  4. Step 4: Simplify right side
    2,211.56x = 6,548,029.41
  5. Step 5: Solve for x
    x = 6,548,029.41/2,211.56
  6. Step 6: Final answer
    x = 2,960.82

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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.