Home / 2,905.87-4,362.35-1,919.53

Finding the Fourth Proportional to 2,905.87, 4,362.35 and 1,919.53

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Solution

The fourth proportional to 2,905.87, 4,362.35 and 1,919.53 is: 2,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.87 : 4,362.35 = 1,919.53 : x
  2. Step 2: Convert to fraction form
    2,905.87/4,362.35 = 1,919.53/x
  3. Step 3: Cross multiply
    2,905.87x = 4,362.35 × 1,919.53
  4. Step 4: Simplify right side
    2,905.87x = 8,373,663.87
  5. Step 5: Solve for x
    x = 8,373,663.87/2,905.87
  6. Step 6: Final answer
    x = 2,881.64

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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.