Home / 2,211.43-3,050.75-1,325.70

Finding the Fourth Proportional to 2,211.43, 3,050.75 and 1,325.70

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Solution

The fourth proportional to 2,211.43, 3,050.75 and 1,325.70 is: 1,828.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.43 : 3,050.75 = 1,325.70 : x
  2. Step 2: Convert to fraction form
    2,211.43/3,050.75 = 1,325.70/x
  3. Step 3: Cross multiply
    2,211.43x = 3,050.75 × 1,325.70
  4. Step 4: Simplify right side
    2,211.43x = 4,044,379.28
  5. Step 5: Solve for x
    x = 4,044,379.28/2,211.43
  6. Step 6: Final answer
    x = 1,828.85

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Half scale
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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.