Home / 2,715.55-4,078.34-1,626.60

Finding the Fourth Proportional to 2,715.55, 4,078.34 and 1,626.60

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Solution

The fourth proportional to 2,715.55, 4,078.34 and 1,626.60 is: 2,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.55 : 4,078.34 = 1,626.60 : x
  2. Step 2: Convert to fraction form
    2,715.55/4,078.34 = 1,626.60/x
  3. Step 3: Cross multiply
    2,715.55x = 4,078.34 × 1,626.60
  4. Step 4: Simplify right side
    2,715.55x = 6,633,819.71
  5. Step 5: Solve for x
    x = 6,633,819.71/2,715.55
  6. Step 6: Final answer
    x = 2,442.90

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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.