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Finding the Fourth Proportional to 2,775.70, 3,830.48 and 1,516.74

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Solution

The fourth proportional to 2,775.70, 3,830.48 and 1,516.74 is: 2,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.70 : 3,830.48 = 1,516.74 : x
  2. Step 2: Convert to fraction form
    2,775.70/3,830.48 = 1,516.74/x
  3. Step 3: Cross multiply
    2,775.70x = 3,830.48 × 1,516.74
  4. Step 4: Simplify right side
    2,775.70x = 5,809,825.97
  5. Step 5: Solve for x
    x = 5,809,825.97/2,775.70
  6. Step 6: Final answer
    x = 2,093.10

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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.