Home / 5,211.90-7,813.62-2,090.52

Finding the Fourth Proportional to 5,211.90, 7,813.62 and 2,090.52

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Solution

The fourth proportional to 5,211.90, 7,813.62 and 2,090.52 is: 3,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.90 : 7,813.62 = 2,090.52 : x
  2. Step 2: Convert to fraction form
    5,211.90/7,813.62 = 2,090.52/x
  3. Step 3: Cross multiply
    5,211.90x = 7,813.62 × 2,090.52
  4. Step 4: Simplify right side
    5,211.90x = 16,334,528.88
  5. Step 5: Solve for x
    x = 16,334,528.88/5,211.90
  6. Step 6: Final answer
    x = 3,134.08

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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.