Home / 3,122.12-4,683.02-1,147.60

Finding the Fourth Proportional to 3,122.12, 4,683.02 and 1,147.60

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Solution

The fourth proportional to 3,122.12, 4,683.02 and 1,147.60 is: 1,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.12 : 4,683.02 = 1,147.60 : x
  2. Step 2: Convert to fraction form
    3,122.12/4,683.02 = 1,147.60/x
  3. Step 3: Cross multiply
    3,122.12x = 4,683.02 × 1,147.60
  4. Step 4: Simplify right side
    3,122.12x = 5,374,204.60
  5. Step 5: Solve for x
    x = 5,374,204.60/3,122.12
  6. Step 6: Final answer
    x = 1,721.33

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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.