Home / 1,941.46-2,676.09-1,311.79

Finding the Fourth Proportional to 1,941.46, 2,676.09 and 1,311.79

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Solution

The fourth proportional to 1,941.46, 2,676.09 and 1,311.79 is: 1,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.46 : 2,676.09 = 1,311.79 : x
  2. Step 2: Convert to fraction form
    1,941.46/2,676.09 = 1,311.79/x
  3. Step 3: Cross multiply
    1,941.46x = 2,676.09 × 1,311.79
  4. Step 4: Simplify right side
    1,941.46x = 3,510,461.41
  5. Step 5: Solve for x
    x = 3,510,461.41/1,941.46
  6. Step 6: Final answer
    x = 1,808.16

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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.