Home / 2,181.86-3,011.28-1,436.94

Finding the Fourth Proportional to 2,181.86, 3,011.28 and 1,436.94

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Solution

The fourth proportional to 2,181.86, 3,011.28 and 1,436.94 is: 1,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.86 : 3,011.28 = 1,436.94 : x
  2. Step 2: Convert to fraction form
    2,181.86/3,011.28 = 1,436.94/x
  3. Step 3: Cross multiply
    2,181.86x = 3,011.28 × 1,436.94
  4. Step 4: Simplify right side
    2,181.86x = 4,327,028.68
  5. Step 5: Solve for x
    x = 4,327,028.68/2,181.86
  6. Step 6: Final answer
    x = 1,983.18

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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.