Home / 1,441.35-1,985.85-1,191.33

Finding the Fourth Proportional to 1,441.35, 1,985.85 and 1,191.33

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Solution

The fourth proportional to 1,441.35, 1,985.85 and 1,191.33 is: 1,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.35 : 1,985.85 = 1,191.33 : x
  2. Step 2: Convert to fraction form
    1,441.35/1,985.85 = 1,191.33/x
  3. Step 3: Cross multiply
    1,441.35x = 1,985.85 × 1,191.33
  4. Step 4: Simplify right side
    1,441.35x = 2,365,802.68
  5. Step 5: Solve for x
    x = 2,365,802.68/1,441.35
  6. Step 6: Final answer
    x = 1,641.38

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Double scale
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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.