Home / 3,191.06-4,403.45-1,774.76

Finding the Fourth Proportional to 3,191.06, 4,403.45 and 1,774.76

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Solution

The fourth proportional to 3,191.06, 4,403.45 and 1,774.76 is: 2,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.06 : 4,403.45 = 1,774.76 : x
  2. Step 2: Convert to fraction form
    3,191.06/4,403.45 = 1,774.76/x
  3. Step 3: Cross multiply
    3,191.06x = 4,403.45 × 1,774.76
  4. Step 4: Simplify right side
    3,191.06x = 7,815,036.03
  5. Step 5: Solve for x
    x = 7,815,036.03/3,191.06
  6. Step 6: Final answer
    x = 2,449.04

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Half scale
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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.