Home / 4,990.68-7,485.72-1,480.54

Finding the Fourth Proportional to 4,990.68, 7,485.72 and 1,480.54

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Solution

The fourth proportional to 4,990.68, 7,485.72 and 1,480.54 is: 2,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.68 : 7,485.72 = 1,480.54 : x
  2. Step 2: Convert to fraction form
    4,990.68/7,485.72 = 1,480.54/x
  3. Step 3: Cross multiply
    4,990.68x = 7,485.72 × 1,480.54
  4. Step 4: Simplify right side
    4,990.68x = 11,082,907.89
  5. Step 5: Solve for x
    x = 11,082,907.89/4,990.68
  6. Step 6: Final answer
    x = 2,220.72

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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.