Home / 3,890.44-5,835.73-1,117.20

Finding the Fourth Proportional to 3,890.44, 5,835.73 and 1,117.20

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Solution

The fourth proportional to 3,890.44, 5,835.73 and 1,117.20 is: 1,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.44 : 5,835.73 = 1,117.20 : x
  2. Step 2: Convert to fraction form
    3,890.44/5,835.73 = 1,117.20/x
  3. Step 3: Cross multiply
    3,890.44x = 5,835.73 × 1,117.20
  4. Step 4: Simplify right side
    3,890.44x = 6,519,677.56
  5. Step 5: Solve for x
    x = 6,519,677.56/3,890.44
  6. Step 6: Final answer
    x = 1,675.82

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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.