Home / 2,212.37-3,053.08-1,217.62

Finding the Fourth Proportional to 2,212.37, 3,053.08 and 1,217.62

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Solution

The fourth proportional to 2,212.37, 3,053.08 and 1,217.62 is: 1,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.37 : 3,053.08 = 1,217.62 : x
  2. Step 2: Convert to fraction form
    2,212.37/3,053.08 = 1,217.62/x
  3. Step 3: Cross multiply
    2,212.37x = 3,053.08 × 1,217.62
  4. Step 4: Simplify right side
    2,212.37x = 3,717,491.27
  5. Step 5: Solve for x
    x = 3,717,491.27/2,212.37
  6. Step 6: Final answer
    x = 1,680.32

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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.