Home / 1,923.17-2,880.57-1,191.20

Finding the Fourth Proportional to 1,923.17, 2,880.57 and 1,191.20

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Solution

The fourth proportional to 1,923.17, 2,880.57 and 1,191.20 is: 1,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.17 : 2,880.57 = 1,191.20 : x
  2. Step 2: Convert to fraction form
    1,923.17/2,880.57 = 1,191.20/x
  3. Step 3: Cross multiply
    1,923.17x = 2,880.57 × 1,191.20
  4. Step 4: Simplify right side
    1,923.17x = 3,431,334.98
  5. Step 5: Solve for x
    x = 3,431,334.98/1,923.17
  6. Step 6: Final answer
    x = 1,784.21

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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.