Home / 2,212.35-3,315.18-1,480.62

Finding the Fourth Proportional to 2,212.35, 3,315.18 and 1,480.62

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Solution

The fourth proportional to 2,212.35, 3,315.18 and 1,480.62 is: 2,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.35 : 3,315.18 = 1,480.62 : x
  2. Step 2: Convert to fraction form
    2,212.35/3,315.18 = 1,480.62/x
  3. Step 3: Cross multiply
    2,212.35x = 3,315.18 × 1,480.62
  4. Step 4: Simplify right side
    2,212.35x = 4,908,521.81
  5. Step 5: Solve for x
    x = 4,908,521.81/2,212.35
  6. Step 6: Final answer
    x = 2,218.69

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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.