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Finding the Fourth Proportional to 5,018.43, 6,925.14 and 2,780.22

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Solution

The fourth proportional to 5,018.43, 6,925.14 and 2,780.22 is: 3,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.43 : 6,925.14 = 2,780.22 : x
  2. Step 2: Convert to fraction form
    5,018.43/6,925.14 = 2,780.22/x
  3. Step 3: Cross multiply
    5,018.43x = 6,925.14 × 2,780.22
  4. Step 4: Simplify right side
    5,018.43x = 19,253,412.73
  5. Step 5: Solve for x
    x = 19,253,412.73/5,018.43
  6. Step 6: Final answer
    x = 3,836.54

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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.