Home / 2,181.82-3,010.98-1,237.64

Finding the Fourth Proportional to 2,181.82, 3,010.98 and 1,237.64

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Solution

The fourth proportional to 2,181.82, 3,010.98 and 1,237.64 is: 1,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.82 : 3,010.98 = 1,237.64 : x
  2. Step 2: Convert to fraction form
    2,181.82/3,010.98 = 1,237.64/x
  3. Step 3: Cross multiply
    2,181.82x = 3,010.98 × 1,237.64
  4. Step 4: Simplify right side
    2,181.82x = 3,726,501.76
  5. Step 5: Solve for x
    x = 3,726,501.76/2,181.82
  6. Step 6: Final answer
    x = 1,707.98

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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.