Home / 2,084.28-3,132.08-1,111.08

Finding the Fourth Proportional to 2,084.28, 3,132.08 and 1,111.08

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Solution

The fourth proportional to 2,084.28, 3,132.08 and 1,111.08 is: 1,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.28 : 3,132.08 = 1,111.08 : x
  2. Step 2: Convert to fraction form
    2,084.28/3,132.08 = 1,111.08/x
  3. Step 3: Cross multiply
    2,084.28x = 3,132.08 × 1,111.08
  4. Step 4: Simplify right side
    2,084.28x = 3,479,991.45
  5. Step 5: Solve for x
    x = 3,479,991.45/2,084.28
  6. Step 6: Final answer
    x = 1,669.64

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1.5x scale

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.