Home / 1,961.67-2,941.57-1,140.18

Finding the Fourth Proportional to 1,961.67, 2,941.57 and 1,140.18

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Solution

The fourth proportional to 1,961.67, 2,941.57 and 1,140.18 is: 1,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.67 : 2,941.57 = 1,140.18 : x
  2. Step 2: Convert to fraction form
    1,961.67/2,941.57 = 1,140.18/x
  3. Step 3: Cross multiply
    1,961.67x = 2,941.57 × 1,140.18
  4. Step 4: Simplify right side
    1,961.67x = 3,353,903.26
  5. Step 5: Solve for x
    x = 3,353,903.26/1,961.67
  6. Step 6: Final answer
    x = 1,709.72

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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.