Home / 2,559.60-3,840.87-1,078.70

Finding the Fourth Proportional to 2,559.60, 3,840.87 and 1,078.70

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Solution

The fourth proportional to 2,559.60, 3,840.87 and 1,078.70 is: 1,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.60 : 3,840.87 = 1,078.70 : x
  2. Step 2: Convert to fraction form
    2,559.60/3,840.87 = 1,078.70/x
  3. Step 3: Cross multiply
    2,559.60x = 3,840.87 × 1,078.70
  4. Step 4: Simplify right side
    2,559.60x = 4,143,146.47
  5. Step 5: Solve for x
    x = 4,143,146.47/2,559.60
  6. Step 6: Final answer
    x = 1,618.67

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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.