Home / 1,941.96-2,676.78-1,312.29

Finding the Fourth Proportional to 1,941.96, 2,676.78 and 1,312.29

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Solution

The fourth proportional to 1,941.96, 2,676.78 and 1,312.29 is: 1,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.96 : 2,676.78 = 1,312.29 : x
  2. Step 2: Convert to fraction form
    1,941.96/2,676.78 = 1,312.29/x
  3. Step 3: Cross multiply
    1,941.96x = 2,676.78 × 1,312.29
  4. Step 4: Simplify right side
    1,941.96x = 3,512,711.63
  5. Step 5: Solve for x
    x = 3,512,711.63/1,941.96
  6. Step 6: Final answer
    x = 1,808.85

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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.