Home / 2,081.53-2,872.65-1,197.55

Finding the Fourth Proportional to 2,081.53, 2,872.65 and 1,197.55

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Solution

The fourth proportional to 2,081.53, 2,872.65 and 1,197.55 is: 1,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.53 : 2,872.65 = 1,197.55 : x
  2. Step 2: Convert to fraction form
    2,081.53/2,872.65 = 1,197.55/x
  3. Step 3: Cross multiply
    2,081.53x = 2,872.65 × 1,197.55
  4. Step 4: Simplify right side
    2,081.53x = 3,440,142.01
  5. Step 5: Solve for x
    x = 3,440,142.01/2,081.53
  6. Step 6: Final answer
    x = 1,652.70

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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.