Home / 3,239.40-4,858.08-1,047.72

Finding the Fourth Proportional to 3,239.40, 4,858.08 and 1,047.72

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Solution

The fourth proportional to 3,239.40, 4,858.08 and 1,047.72 is: 1,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.40 : 4,858.08 = 1,047.72 : x
  2. Step 2: Convert to fraction form
    3,239.40/4,858.08 = 1,047.72/x
  3. Step 3: Cross multiply
    3,239.40x = 4,858.08 × 1,047.72
  4. Step 4: Simplify right side
    3,239.40x = 5,089,907.58
  5. Step 5: Solve for x
    x = 5,089,907.58/3,239.40
  6. Step 6: Final answer
    x = 1,571.25

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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.