Home / 2,990.06-4,485.09-1,429.69

Finding the Fourth Proportional to 2,990.06, 4,485.09 and 1,429.69

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Solution

The fourth proportional to 2,990.06, 4,485.09 and 1,429.69 is: 2,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.06 : 4,485.09 = 1,429.69 : x
  2. Step 2: Convert to fraction form
    2,990.06/4,485.09 = 1,429.69/x
  3. Step 3: Cross multiply
    2,990.06x = 4,485.09 × 1,429.69
  4. Step 4: Simplify right side
    2,990.06x = 6,412,281.17
  5. Step 5: Solve for x
    x = 6,412,281.17/2,990.06
  6. Step 6: Final answer
    x = 2,144.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.