Home / 1,853.75-2,557.92-1,191.49

Finding the Fourth Proportional to 1,853.75, 2,557.92 and 1,191.49

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Solution

The fourth proportional to 1,853.75, 2,557.92 and 1,191.49 is: 1,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.75 : 2,557.92 = 1,191.49 : x
  2. Step 2: Convert to fraction form
    1,853.75/2,557.92 = 1,191.49/x
  3. Step 3: Cross multiply
    1,853.75x = 2,557.92 × 1,191.49
  4. Step 4: Simplify right side
    1,853.75x = 3,047,730.14
  5. Step 5: Solve for x
    x = 3,047,730.14/1,853.75
  6. Step 6: Final answer
    x = 1,644.09

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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.