Home / 2,211.62-3,050.76-1,326.90

Finding the Fourth Proportional to 2,211.62, 3,050.76 and 1,326.90

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Solution

The fourth proportional to 2,211.62, 3,050.76 and 1,326.90 is: 1,830.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.62 : 3,050.76 = 1,326.90 : x
  2. Step 2: Convert to fraction form
    2,211.62/3,050.76 = 1,326.90/x
  3. Step 3: Cross multiply
    2,211.62x = 3,050.76 × 1,326.90
  4. Step 4: Simplify right side
    2,211.62x = 4,048,053.44
  5. Step 5: Solve for x
    x = 4,048,053.44/2,211.62
  6. Step 6: Final answer
    x = 1,830.36

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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.