Home / 1,922.12-2,883.18-554.12

Finding the Fourth Proportional to 1,922.12, 2,883.18 and 554.12

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Solution

The fourth proportional to 1,922.12, 2,883.18 and 554.12 is: 831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.12 : 2,883.18 = 554.12 : x
  2. Step 2: Convert to fraction form
    1,922.12/2,883.18 = 554.12/x
  3. Step 3: Cross multiply
    1,922.12x = 2,883.18 × 554.12
  4. Step 4: Simplify right side
    1,922.12x = 1,597,627.70
  5. Step 5: Solve for x
    x = 1,597,627.70/1,922.12
  6. Step 6: Final answer
    x = 831.18

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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.