Home / 4,740.62-7,107.89-1,969.20

Finding the Fourth Proportional to 4,740.62, 7,107.89 and 1,969.20

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Solution

The fourth proportional to 4,740.62, 7,107.89 and 1,969.20 is: 2,952.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.62 : 7,107.89 = 1,969.20 : x
  2. Step 2: Convert to fraction form
    4,740.62/7,107.89 = 1,969.20/x
  3. Step 3: Cross multiply
    4,740.62x = 7,107.89 × 1,969.20
  4. Step 4: Simplify right side
    4,740.62x = 13,996,847.14
  5. Step 5: Solve for x
    x = 13,996,847.14/4,740.62
  6. Step 6: Final answer
    x = 2,952.54

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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.