Home / 3,505.09-5,254.38-1,315.27

Finding the Fourth Proportional to 3,505.09, 5,254.38 and 1,315.27

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Solution

The fourth proportional to 3,505.09, 5,254.38 and 1,315.27 is: 1,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.09 : 5,254.38 = 1,315.27 : x
  2. Step 2: Convert to fraction form
    3,505.09/5,254.38 = 1,315.27/x
  3. Step 3: Cross multiply
    3,505.09x = 5,254.38 × 1,315.27
  4. Step 4: Simplify right side
    3,505.09x = 6,910,928.38
  5. Step 5: Solve for x
    x = 6,910,928.38/3,505.09
  6. Step 6: Final answer
    x = 1,971.68

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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.