Home / 2,674.07-4,012.77-1,287.55

Finding the Fourth Proportional to 2,674.07, 4,012.77 and 1,287.55

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Solution

The fourth proportional to 2,674.07, 4,012.77 and 1,287.55 is: 1,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.07 : 4,012.77 = 1,287.55 : x
  2. Step 2: Convert to fraction form
    2,674.07/4,012.77 = 1,287.55/x
  3. Step 3: Cross multiply
    2,674.07x = 4,012.77 × 1,287.55
  4. Step 4: Simplify right side
    2,674.07x = 5,166,615.51
  5. Step 5: Solve for x
    x = 5,166,615.51/2,674.07
  6. Step 6: Final answer
    x = 1,932.12

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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.