Home / 2,009.25-2,772.80-1,212.62

Finding the Fourth Proportional to 2,009.25, 2,772.80 and 1,212.62

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Solution

The fourth proportional to 2,009.25, 2,772.80 and 1,212.62 is: 1,673.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.25 : 2,772.80 = 1,212.62 : x
  2. Step 2: Convert to fraction form
    2,009.25/2,772.80 = 1,212.62/x
  3. Step 3: Cross multiply
    2,009.25x = 2,772.80 × 1,212.62
  4. Step 4: Simplify right side
    2,009.25x = 3,362,332.81
  5. Step 5: Solve for x
    x = 3,362,332.81/2,009.25
  6. Step 6: Final answer
    x = 1,673.43

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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.