Home / 3,180.67-4,770.80-1,948.25

Finding the Fourth Proportional to 3,180.67, 4,770.80 and 1,948.25

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Solution

The fourth proportional to 3,180.67, 4,770.80 and 1,948.25 is: 2,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.67 : 4,770.80 = 1,948.25 : x
  2. Step 2: Convert to fraction form
    3,180.67/4,770.80 = 1,948.25/x
  3. Step 3: Cross multiply
    3,180.67x = 4,770.80 × 1,948.25
  4. Step 4: Simplify right side
    3,180.67x = 9,294,720.59
  5. Step 5: Solve for x
    x = 9,294,720.59/3,180.67
  6. Step 6: Final answer
    x = 2,922.25

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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.