Home / 3,580.42-5,369.35-1,239.80

Finding the Fourth Proportional to 3,580.42, 5,369.35 and 1,239.80

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Solution

The fourth proportional to 3,580.42, 5,369.35 and 1,239.80 is: 1,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.42 : 5,369.35 = 1,239.80 : x
  2. Step 2: Convert to fraction form
    3,580.42/5,369.35 = 1,239.80/x
  3. Step 3: Cross multiply
    3,580.42x = 5,369.35 × 1,239.80
  4. Step 4: Simplify right side
    3,580.42x = 6,656,918.65
  5. Step 5: Solve for x
    x = 6,656,918.65/3,580.42
  6. Step 6: Final answer
    x = 1,859.25

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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.