Home / 3,890.53-5,835.80-1,293.47

Finding the Fourth Proportional to 3,890.53, 5,835.80 and 1,293.47

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Solution

The fourth proportional to 3,890.53, 5,835.80 and 1,293.47 is: 1,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.53 : 5,835.80 = 1,293.47 : x
  2. Step 2: Convert to fraction form
    3,890.53/5,835.80 = 1,293.47/x
  3. Step 3: Cross multiply
    3,890.53x = 5,835.80 × 1,293.47
  4. Step 4: Simplify right side
    3,890.53x = 7,548,420.89
  5. Step 5: Solve for x
    x = 7,548,420.89/3,890.53
  6. Step 6: Final answer
    x = 1,940.20

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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.