Home / 2,890.75-4,334.37-1,133.65

Finding the Fourth Proportional to 2,890.75, 4,334.37 and 1,133.65

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Solution

The fourth proportional to 2,890.75, 4,334.37 and 1,133.65 is: 1,699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.75 : 4,334.37 = 1,133.65 : x
  2. Step 2: Convert to fraction form
    2,890.75/4,334.37 = 1,133.65/x
  3. Step 3: Cross multiply
    2,890.75x = 4,334.37 × 1,133.65
  4. Step 4: Simplify right side
    2,890.75x = 4,913,653.13
  5. Step 5: Solve for x
    x = 4,913,653.13/2,890.75
  6. Step 6: Final answer
    x = 1,699.78

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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.