Home / 2,114.42-3,170.57-1,189.74

Finding the Fourth Proportional to 2,114.42, 3,170.57 and 1,189.74

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Solution

The fourth proportional to 2,114.42, 3,170.57 and 1,189.74 is: 1,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.42 : 3,170.57 = 1,189.74 : x
  2. Step 2: Convert to fraction form
    2,114.42/3,170.57 = 1,189.74/x
  3. Step 3: Cross multiply
    2,114.42x = 3,170.57 × 1,189.74
  4. Step 4: Simplify right side
    2,114.42x = 3,772,148.00
  5. Step 5: Solve for x
    x = 3,772,148.00/2,114.42
  6. Step 6: Final answer
    x = 1,784.01

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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.