Home / 1,926.64-2,651.70-1,676.80

Finding the Fourth Proportional to 1,926.64, 2,651.70 and 1,676.80

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Solution

The fourth proportional to 1,926.64, 2,651.70 and 1,676.80 is: 2,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.64 : 2,651.70 = 1,676.80 : x
  2. Step 2: Convert to fraction form
    1,926.64/2,651.70 = 1,676.80/x
  3. Step 3: Cross multiply
    1,926.64x = 2,651.70 × 1,676.80
  4. Step 4: Simplify right side
    1,926.64x = 4,446,370.56
  5. Step 5: Solve for x
    x = 4,446,370.56/1,926.64
  6. Step 6: Final answer
    x = 2,307.84

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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.