Home / 2,181.32-3,009.96-1,237.22

Finding the Fourth Proportional to 2,181.32, 3,009.96 and 1,237.22

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Solution

The fourth proportional to 2,181.32, 3,009.96 and 1,237.22 is: 1,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.32 : 3,009.96 = 1,237.22 : x
  2. Step 2: Convert to fraction form
    2,181.32/3,009.96 = 1,237.22/x
  3. Step 3: Cross multiply
    2,181.32x = 3,009.96 × 1,237.22
  4. Step 4: Simplify right side
    2,181.32x = 3,723,967.66
  5. Step 5: Solve for x
    x = 3,723,967.66/2,181.32
  6. Step 6: Final answer
    x = 1,707.21

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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.