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Finding the Fourth Proportional to 5,018.99, 6,926.06 and 2,780.80

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Solution

The fourth proportional to 5,018.99, 6,926.06 and 2,780.80 is: 3,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.99 : 6,926.06 = 2,780.80 : x
  2. Step 2: Convert to fraction form
    5,018.99/6,926.06 = 2,780.80/x
  3. Step 3: Cross multiply
    5,018.99x = 6,926.06 × 2,780.80
  4. Step 4: Simplify right side
    5,018.99x = 19,259,977.28
  5. Step 5: Solve for x
    x = 19,259,977.28/5,018.99
  6. Step 6: Final answer
    x = 3,837.42

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1.5x scale

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.