Home / 4,815.40-7,223.10-2,734.60

Finding the Fourth Proportional to 4,815.40, 7,223.10 and 2,734.60

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Solution

The fourth proportional to 4,815.40, 7,223.10 and 2,734.60 is: 4,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.40 : 7,223.10 = 2,734.60 : x
  2. Step 2: Convert to fraction form
    4,815.40/7,223.10 = 2,734.60/x
  3. Step 3: Cross multiply
    4,815.40x = 7,223.10 × 2,734.60
  4. Step 4: Simplify right side
    4,815.40x = 19,752,289.26
  5. Step 5: Solve for x
    x = 19,752,289.26/4,815.40
  6. Step 6: Final answer
    x = 4,101.90

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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.