Home / 1,284.29-1,926.44-515.33

Finding the Fourth Proportional to 1,284.29, 1,926.44 and 515.33

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Solution

The fourth proportional to 1,284.29, 1,926.44 and 515.33 is: 773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.29 : 1,926.44 = 515.33 : x
  2. Step 2: Convert to fraction form
    1,284.29/1,926.44 = 515.33/x
  3. Step 3: Cross multiply
    1,284.29x = 1,926.44 × 515.33
  4. Step 4: Simplify right side
    1,284.29x = 992,749.75
  5. Step 5: Solve for x
    x = 992,749.75/1,284.29
  6. Step 6: Final answer
    x = 773.00

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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.