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Finding the Fourth Proportional to 2,852.70, 3,936.70 and 1,610.70

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Solution

The fourth proportional to 2,852.70, 3,936.70 and 1,610.70 is: 2,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.70 : 3,936.70 = 1,610.70 : x
  2. Step 2: Convert to fraction form
    2,852.70/3,936.70 = 1,610.70/x
  3. Step 3: Cross multiply
    2,852.70x = 3,936.70 × 1,610.70
  4. Step 4: Simplify right side
    2,852.70x = 6,340,842.69
  5. Step 5: Solve for x
    x = 6,340,842.69/2,852.70
  6. Step 6: Final answer
    x = 2,222.75

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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.