Home / 5,423.60-7,485.54-3,185.66

Finding the Fourth Proportional to 5,423.60, 7,485.54 and 3,185.66

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Solution

The fourth proportional to 5,423.60, 7,485.54 and 3,185.66 is: 4,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.60 : 7,485.54 = 3,185.66 : x
  2. Step 2: Convert to fraction form
    5,423.60/7,485.54 = 3,185.66/x
  3. Step 3: Cross multiply
    5,423.60x = 7,485.54 × 3,185.66
  4. Step 4: Simplify right side
    5,423.60x = 23,846,385.36
  5. Step 5: Solve for x
    x = 23,846,385.36/5,423.60
  6. Step 6: Final answer
    x = 4,396.78

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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.