Home / 5,405.01-7,459.73-3,912.38

Finding the Fourth Proportional to 5,405.01, 7,459.73 and 3,912.38

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Solution

The fourth proportional to 5,405.01, 7,459.73 and 3,912.38 is: 5,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.01 : 7,459.73 = 3,912.38 : x
  2. Step 2: Convert to fraction form
    5,405.01/7,459.73 = 3,912.38/x
  3. Step 3: Cross multiply
    5,405.01x = 7,459.73 × 3,912.38
  4. Step 4: Simplify right side
    5,405.01x = 29,185,284.24
  5. Step 5: Solve for x
    x = 29,185,284.24/5,405.01
  6. Step 6: Final answer
    x = 5,399.68

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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.