Home / 2,182.16-3,011.40-2,016.80

Finding the Fourth Proportional to 2,182.16, 3,011.40 and 2,016.80

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Solution

The fourth proportional to 2,182.16, 3,011.40 and 2,016.80 is: 2,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.16 : 3,011.40 = 2,016.80 : x
  2. Step 2: Convert to fraction form
    2,182.16/3,011.40 = 2,016.80/x
  3. Step 3: Cross multiply
    2,182.16x = 3,011.40 × 2,016.80
  4. Step 4: Simplify right side
    2,182.16x = 6,073,391.52
  5. Step 5: Solve for x
    x = 6,073,391.52/2,182.16
  6. Step 6: Final answer
    x = 2,783.20

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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.