Home / 4,705.20-7,057.80-1,195.20

Finding the Fourth Proportional to 4,705.20, 7,057.80 and 1,195.20

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Solution

The fourth proportional to 4,705.20, 7,057.80 and 1,195.20 is: 1,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,705.20 : 7,057.80 = 1,195.20 : x
  2. Step 2: Convert to fraction form
    4,705.20/7,057.80 = 1,195.20/x
  3. Step 3: Cross multiply
    4,705.20x = 7,057.80 × 1,195.20
  4. Step 4: Simplify right side
    4,705.20x = 8,435,482.56
  5. Step 5: Solve for x
    x = 8,435,482.56/4,705.20
  6. Step 6: Final answer
    x = 1,792.80

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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.