Home / 5,406.21-7,459.58-3,168.12

Finding the Fourth Proportional to 5,406.21, 7,459.58 and 3,168.12

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Solution

The fourth proportional to 5,406.21, 7,459.58 and 3,168.12 is: 4,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.21 : 7,459.58 = 3,168.12 : x
  2. Step 2: Convert to fraction form
    5,406.21/7,459.58 = 3,168.12/x
  3. Step 3: Cross multiply
    5,406.21x = 7,459.58 × 3,168.12
  4. Step 4: Simplify right side
    5,406.21x = 23,632,828.75
  5. Step 5: Solve for x
    x = 23,632,828.75/5,406.21
  6. Step 6: Final answer
    x = 4,371.42

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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.