Home / 4,792.20-7,188.30-1,329.45

Finding the Fourth Proportional to 4,792.20, 7,188.30 and 1,329.45

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Solution

The fourth proportional to 4,792.20, 7,188.30 and 1,329.45 is: 1,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,792.20 : 7,188.30 = 1,329.45 : x
  2. Step 2: Convert to fraction form
    4,792.20/7,188.30 = 1,329.45/x
  3. Step 3: Cross multiply
    4,792.20x = 7,188.30 × 1,329.45
  4. Step 4: Simplify right side
    4,792.20x = 9,556,485.44
  5. Step 5: Solve for x
    x = 9,556,485.44/4,792.20
  6. Step 6: Final answer
    x = 1,994.18

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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.