Home / 3,173.25-4,378.90-1,756.89

Finding the Fourth Proportional to 3,173.25, 4,378.90 and 1,756.89

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Solution

The fourth proportional to 3,173.25, 4,378.90 and 1,756.89 is: 2,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.25 : 4,378.90 = 1,756.89 : x
  2. Step 2: Convert to fraction form
    3,173.25/4,378.90 = 1,756.89/x
  3. Step 3: Cross multiply
    3,173.25x = 4,378.90 × 1,756.89
  4. Step 4: Simplify right side
    3,173.25x = 7,693,245.62
  5. Step 5: Solve for x
    x = 7,693,245.62/3,173.25
  6. Step 6: Final answer
    x = 2,424.41

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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.