Home / 2,212.40-3,318.49-895.77

Finding the Fourth Proportional to 2,212.40, 3,318.49 and 895.77

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Solution

The fourth proportional to 2,212.40, 3,318.49 and 895.77 is: 1,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.40 : 3,318.49 = 895.77 : x
  2. Step 2: Convert to fraction form
    2,212.40/3,318.49 = 895.77/x
  3. Step 3: Cross multiply
    2,212.40x = 3,318.49 × 895.77
  4. Step 4: Simplify right side
    2,212.40x = 2,972,603.79
  5. Step 5: Solve for x
    x = 2,972,603.79/2,212.40
  6. Step 6: Final answer
    x = 1,343.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.