Home / 1,965.69-2,948.20-1,857.25

Finding the Fourth Proportional to 1,965.69, 2,948.20 and 1,857.25

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Solution

The fourth proportional to 1,965.69, 2,948.20 and 1,857.25 is: 2,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.69 : 2,948.20 = 1,857.25 : x
  2. Step 2: Convert to fraction form
    1,965.69/2,948.20 = 1,857.25/x
  3. Step 3: Cross multiply
    1,965.69x = 2,948.20 × 1,857.25
  4. Step 4: Simplify right side
    1,965.69x = 5,475,544.45
  5. Step 5: Solve for x
    x = 5,475,544.45/1,965.69
  6. Step 6: Final answer
    x = 2,785.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.