Home / 6,165.20-8,507.40-3,513.20

Finding the Fourth Proportional to 6,165.20, 8,507.40 and 3,513.20

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Solution

The fourth proportional to 6,165.20, 8,507.40 and 3,513.20 is: 4,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,165.20 : 8,507.40 = 3,513.20 : x
  2. Step 2: Convert to fraction form
    6,165.20/8,507.40 = 3,513.20/x
  3. Step 3: Cross multiply
    6,165.20x = 8,507.40 × 3,513.20
  4. Step 4: Simplify right side
    6,165.20x = 29,888,197.68
  5. Step 5: Solve for x
    x = 29,888,197.68/6,165.20
  6. Step 6: Final answer
    x = 4,847.89

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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.