Home / 6,107.60-8,428.04-3,455.28

Finding the Fourth Proportional to 6,107.60, 8,428.04 and 3,455.28

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Solution

The fourth proportional to 6,107.60, 8,428.04 and 3,455.28 is: 4,768.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,107.60 : 8,428.04 = 3,455.28 : x
  2. Step 2: Convert to fraction form
    6,107.60/8,428.04 = 3,455.28/x
  3. Step 3: Cross multiply
    6,107.60x = 8,428.04 × 3,455.28
  4. Step 4: Simplify right side
    6,107.60x = 29,121,238.05
  5. Step 5: Solve for x
    x = 29,121,238.05/6,107.60
  6. Step 6: Final answer
    x = 4,768.03

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1.5x scale

Why These Related Problems?

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