Home / 2,478.20-3,419.98-1,483.56

Finding the Fourth Proportional to 2,478.20, 3,419.98 and 1,483.56

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Solution

The fourth proportional to 2,478.20, 3,419.98 and 1,483.56 is: 2,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.20 : 3,419.98 = 1,483.56 : x
  2. Step 2: Convert to fraction form
    2,478.20/3,419.98 = 1,483.56/x
  3. Step 3: Cross multiply
    2,478.20x = 3,419.98 × 1,483.56
  4. Step 4: Simplify right side
    2,478.20x = 5,073,745.53
  5. Step 5: Solve for x
    x = 5,073,745.53/2,478.20
  6. Step 6: Final answer
    x = 2,047.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.