Home / 5,181.07-7,771.64-1,892.87

Finding the Fourth Proportional to 5,181.07, 7,771.64 and 1,892.87

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Solution

The fourth proportional to 5,181.07, 7,771.64 and 1,892.87 is: 2,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.07 : 7,771.64 = 1,892.87 : x
  2. Step 2: Convert to fraction form
    5,181.07/7,771.64 = 1,892.87/x
  3. Step 3: Cross multiply
    5,181.07x = 7,771.64 × 1,892.87
  4. Step 4: Simplify right side
    5,181.07x = 14,710,714.17
  5. Step 5: Solve for x
    x = 14,710,714.17/5,181.07
  6. Step 6: Final answer
    x = 2,839.32

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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.