Home / 2,197.05-3,047.46-2,118.25

Finding the Fourth Proportional to 2,197.05, 3,047.46 and 2,118.25

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Solution

The fourth proportional to 2,197.05, 3,047.46 and 2,118.25 is: 2,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.05 : 3,047.46 = 2,118.25 : x
  2. Step 2: Convert to fraction form
    2,197.05/3,047.46 = 2,118.25/x
  3. Step 3: Cross multiply
    2,197.05x = 3,047.46 × 2,118.25
  4. Step 4: Simplify right side
    2,197.05x = 6,455,282.15
  5. Step 5: Solve for x
    x = 6,455,282.15/2,197.05
  6. Step 6: Final answer
    x = 2,938.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.