Home / 2,182.96-3,012.48-1,188.24

Finding the Fourth Proportional to 2,182.96, 3,012.48 and 1,188.24

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Solution

The fourth proportional to 2,182.96, 3,012.48 and 1,188.24 is: 1,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.96 : 3,012.48 = 1,188.24 : x
  2. Step 2: Convert to fraction form
    2,182.96/3,012.48 = 1,188.24/x
  3. Step 3: Cross multiply
    2,182.96x = 3,012.48 × 1,188.24
  4. Step 4: Simplify right side
    2,182.96x = 3,579,554.88
  5. Step 5: Solve for x
    x = 3,579,554.88/2,182.96
  6. Step 6: Final answer
    x = 1,639.77

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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.