Home / 2,814.51-4,218.93-2,087.33

Finding the Fourth Proportional to 2,814.51, 4,218.93 and 2,087.33

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Solution

The fourth proportional to 2,814.51, 4,218.93 and 2,087.33 is: 3,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.51 : 4,218.93 = 2,087.33 : x
  2. Step 2: Convert to fraction form
    2,814.51/4,218.93 = 2,087.33/x
  3. Step 3: Cross multiply
    2,814.51x = 4,218.93 × 2,087.33
  4. Step 4: Simplify right side
    2,814.51x = 8,806,309.70
  5. Step 5: Solve for x
    x = 8,806,309.70/2,814.51
  6. Step 6: Final answer
    x = 3,128.90

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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.