Home / 1,965.09-2,946.81-1,143.93

Finding the Fourth Proportional to 1,965.09, 2,946.81 and 1,143.93

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Solution

The fourth proportional to 1,965.09, 2,946.81 and 1,143.93 is: 1,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.09 : 2,946.81 = 1,143.93 : x
  2. Step 2: Convert to fraction form
    1,965.09/2,946.81 = 1,143.93/x
  3. Step 3: Cross multiply
    1,965.09x = 2,946.81 × 1,143.93
  4. Step 4: Simplify right side
    1,965.09x = 3,370,944.36
  5. Step 5: Solve for x
    x = 3,370,944.36/1,965.09
  6. Step 6: Final answer
    x = 1,715.41

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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.