Home / 2,199.68-3,035.55-1,205.02

Finding the Fourth Proportional to 2,199.68, 3,035.55 and 1,205.02

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Solution

The fourth proportional to 2,199.68, 3,035.55 and 1,205.02 is: 1,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.68 : 3,035.55 = 1,205.02 : x
  2. Step 2: Convert to fraction form
    2,199.68/3,035.55 = 1,205.02/x
  3. Step 3: Cross multiply
    2,199.68x = 3,035.55 × 1,205.02
  4. Step 4: Simplify right side
    2,199.68x = 3,657,877.26
  5. Step 5: Solve for x
    x = 3,657,877.26/2,199.68
  6. Step 6: Final answer
    x = 1,662.92

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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.