Home / 5,018.75-6,926.21-2,780.72

Finding the Fourth Proportional to 5,018.75, 6,926.21 and 2,780.72

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Solution

The fourth proportional to 5,018.75, 6,926.21 and 2,780.72 is: 3,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.75 : 6,926.21 = 2,780.72 : x
  2. Step 2: Convert to fraction form
    5,018.75/6,926.21 = 2,780.72/x
  3. Step 3: Cross multiply
    5,018.75x = 6,926.21 × 2,780.72
  4. Step 4: Simplify right side
    5,018.75x = 19,259,850.67
  5. Step 5: Solve for x
    x = 19,259,850.67/5,018.75
  6. Step 6: Final answer
    x = 3,837.58

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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.