Home / 3,890.04-5,835.75-1,485.69

Finding the Fourth Proportional to 3,890.04, 5,835.75 and 1,485.69

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Solution

The fourth proportional to 3,890.04, 5,835.75 and 1,485.69 is: 2,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.04 : 5,835.75 = 1,485.69 : x
  2. Step 2: Convert to fraction form
    3,890.04/5,835.75 = 1,485.69/x
  3. Step 3: Cross multiply
    3,890.04x = 5,835.75 × 1,485.69
  4. Step 4: Simplify right side
    3,890.04x = 8,670,115.42
  5. Step 5: Solve for x
    x = 8,670,115.42/3,890.04
  6. Step 6: Final answer
    x = 2,228.80

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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.