Home / 3,268.72-4,905.51-1,538.56

Finding the Fourth Proportional to 3,268.72, 4,905.51 and 1,538.56

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Solution

The fourth proportional to 3,268.72, 4,905.51 and 1,538.56 is: 2,308.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,268.72 : 4,905.51 = 1,538.56 : x
  2. Step 2: Convert to fraction form
    3,268.72/4,905.51 = 1,538.56/x
  3. Step 3: Cross multiply
    3,268.72x = 4,905.51 × 1,538.56
  4. Step 4: Simplify right side
    3,268.72x = 7,547,389.25
  5. Step 5: Solve for x
    x = 7,547,389.25/3,268.72
  6. Step 6: Final answer
    x = 2,308.98

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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.