Home / 2,926.75-4,038.92-2,181.36

Finding the Fourth Proportional to 2,926.75, 4,038.92 and 2,181.36

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Solution

The fourth proportional to 2,926.75, 4,038.92 and 2,181.36 is: 3,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.75 : 4,038.92 = 2,181.36 : x
  2. Step 2: Convert to fraction form
    2,926.75/4,038.92 = 2,181.36/x
  3. Step 3: Cross multiply
    2,926.75x = 4,038.92 × 2,181.36
  4. Step 4: Simplify right side
    2,926.75x = 8,810,338.53
  5. Step 5: Solve for x
    x = 8,810,338.53/2,926.75
  6. Step 6: Final answer
    x = 3,010.28

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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.