Home / 4,916-6,784.11-2,820.14

Finding the Fourth Proportional to 4,916, 6,784.11 and 2,820.14

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Solution

The fourth proportional to 4,916, 6,784.11 and 2,820.14 is: 3,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916 : 6,784.11 = 2,820.14 : x
  2. Step 2: Convert to fraction form
    4,916/6,784.11 = 2,820.14/x
  3. Step 3: Cross multiply
    4,916x = 6,784.11 × 2,820.14
  4. Step 4: Simplify right side
    4,916x = 19,132,139.98
  5. Step 5: Solve for x
    x = 19,132,139.98/4,916
  6. Step 6: Final answer
    x = 3,891.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.