Home / 2,292.81-3,436.86-905.58

Finding the Fourth Proportional to 2,292.81, 3,436.86 and 905.58

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Solution

The fourth proportional to 2,292.81, 3,436.86 and 905.58 is: 1,357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.81 : 3,436.86 = 905.58 : x
  2. Step 2: Convert to fraction form
    2,292.81/3,436.86 = 905.58/x
  3. Step 3: Cross multiply
    2,292.81x = 3,436.86 × 905.58
  4. Step 4: Simplify right side
    2,292.81x = 3,112,351.68
  5. Step 5: Solve for x
    x = 3,112,351.68/2,292.81
  6. Step 6: Final answer
    x = 1,357.44

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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.