Home / 2,652.32-3,977.20-1,111.84

Finding the Fourth Proportional to 2,652.32, 3,977.20 and 1,111.84

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Solution

The fourth proportional to 2,652.32, 3,977.20 and 1,111.84 is: 1,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.32 : 3,977.20 = 1,111.84 : x
  2. Step 2: Convert to fraction form
    2,652.32/3,977.20 = 1,111.84/x
  3. Step 3: Cross multiply
    2,652.32x = 3,977.20 × 1,111.84
  4. Step 4: Simplify right side
    2,652.32x = 4,422,010.05
  5. Step 5: Solve for x
    x = 4,422,010.05/2,652.32
  6. Step 6: Final answer
    x = 1,667.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.