Home / 7,619.45-11,425.74-3,459.29

Finding the Fourth Proportional to 7,619.45, 11,425.74 and 3,459.29

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Solution

The fourth proportional to 7,619.45, 11,425.74 and 3,459.29 is: 5,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.45 : 11,425.74 = 3,459.29 : x
  2. Step 2: Convert to fraction form
    7,619.45/11,425.74 = 3,459.29/x
  3. Step 3: Cross multiply
    7,619.45x = 11,425.74 × 3,459.29
  4. Step 4: Simplify right side
    7,619.45x = 39,524,948.12
  5. Step 5: Solve for x
    x = 39,524,948.12/7,619.45
  6. Step 6: Final answer
    x = 5,187.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.