Home / 4,767.08-7,147.72-1,990.60

Finding the Fourth Proportional to 4,767.08, 7,147.72 and 1,990.60

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Solution

The fourth proportional to 4,767.08, 7,147.72 and 1,990.60 is: 2,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.08 : 7,147.72 = 1,990.60 : x
  2. Step 2: Convert to fraction form
    4,767.08/7,147.72 = 1,990.60/x
  3. Step 3: Cross multiply
    4,767.08x = 7,147.72 × 1,990.60
  4. Step 4: Simplify right side
    4,767.08x = 14,228,251.43
  5. Step 5: Solve for x
    x = 14,228,251.43/4,767.08
  6. Step 6: Final answer
    x = 2,984.69

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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.