Home / 4,990.32-7,490.79-3,675.60

Finding the Fourth Proportional to 4,990.32, 7,490.79 and 3,675.60

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Solution

The fourth proportional to 4,990.32, 7,490.79 and 3,675.60 is: 5,517.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.32 : 7,490.79 = 3,675.60 : x
  2. Step 2: Convert to fraction form
    4,990.32/7,490.79 = 3,675.60/x
  3. Step 3: Cross multiply
    4,990.32x = 7,490.79 × 3,675.60
  4. Step 4: Simplify right side
    4,990.32x = 27,533,147.72
  5. Step 5: Solve for x
    x = 27,533,147.72/4,990.32
  6. Step 6: Final answer
    x = 5,517.31

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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.