Home / 5,215.09-7,822.56-1,266.38

Finding the Fourth Proportional to 5,215.09, 7,822.56 and 1,266.38

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Solution

The fourth proportional to 5,215.09, 7,822.56 and 1,266.38 is: 1,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.09 : 7,822.56 = 1,266.38 : x
  2. Step 2: Convert to fraction form
    5,215.09/7,822.56 = 1,266.38/x
  3. Step 3: Cross multiply
    5,215.09x = 7,822.56 × 1,266.38
  4. Step 4: Simplify right side
    5,215.09x = 9,906,288.09
  5. Step 5: Solve for x
    x = 9,906,288.09/5,215.09
  6. Step 6: Final answer
    x = 1,899.54

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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.