Home / 4,930.80-7,394.37-1,419.62

Finding the Fourth Proportional to 4,930.80, 7,394.37 and 1,419.62

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Solution

The fourth proportional to 4,930.80, 7,394.37 and 1,419.62 is: 2,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.80 : 7,394.37 = 1,419.62 : x
  2. Step 2: Convert to fraction form
    4,930.80/7,394.37 = 1,419.62/x
  3. Step 3: Cross multiply
    4,930.80x = 7,394.37 × 1,419.62
  4. Step 4: Simplify right side
    4,930.80x = 10,497,182.03
  5. Step 5: Solve for x
    x = 10,497,182.03/4,930.80
  6. Step 6: Final answer
    x = 2,128.90

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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.