Home / 5,538.60-8,313.30-2,768.40

Finding the Fourth Proportional to 5,538.60, 8,313.30 and 2,768.40

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Solution

The fourth proportional to 5,538.60, 8,313.30 and 2,768.40 is: 4,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.60 : 8,313.30 = 2,768.40 : x
  2. Step 2: Convert to fraction form
    5,538.60/8,313.30 = 2,768.40/x
  3. Step 3: Cross multiply
    5,538.60x = 8,313.30 × 2,768.40
  4. Step 4: Simplify right side
    5,538.60x = 23,014,539.72
  5. Step 5: Solve for x
    x = 23,014,539.72/5,538.60
  6. Step 6: Final answer
    x = 4,155.30

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1.5x scale

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.