Home / 3,218.47-4,829.60-1,271.23

Finding the Fourth Proportional to 3,218.47, 4,829.60 and 1,271.23

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Solution

The fourth proportional to 3,218.47, 4,829.60 and 1,271.23 is: 1,907.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.47 : 4,829.60 = 1,271.23 : x
  2. Step 2: Convert to fraction form
    3,218.47/4,829.60 = 1,271.23/x
  3. Step 3: Cross multiply
    3,218.47x = 4,829.60 × 1,271.23
  4. Step 4: Simplify right side
    3,218.47x = 6,139,532.41
  5. Step 5: Solve for x
    x = 6,139,532.41/3,218.47
  6. Step 6: Final answer
    x = 1,907.59

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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.