Home / 2,676.09-3,692.46-1,557.21

Finding the Fourth Proportional to 2,676.09, 3,692.46 and 1,557.21

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Solution

The fourth proportional to 2,676.09, 3,692.46 and 1,557.21 is: 2,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.09 : 3,692.46 = 1,557.21 : x
  2. Step 2: Convert to fraction form
    2,676.09/3,692.46 = 1,557.21/x
  3. Step 3: Cross multiply
    2,676.09x = 3,692.46 × 1,557.21
  4. Step 4: Simplify right side
    2,676.09x = 5,749,935.64
  5. Step 5: Solve for x
    x = 5,749,935.64/2,676.09
  6. Step 6: Final answer
    x = 2,148.63

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1.5x scale

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.