Home / 7,110.98-9,812.99-3,924.53

Finding the Fourth Proportional to 7,110.98, 9,812.99 and 3,924.53

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Solution

The fourth proportional to 7,110.98, 9,812.99 and 3,924.53 is: 5,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.98 : 9,812.99 = 3,924.53 : x
  2. Step 2: Convert to fraction form
    7,110.98/9,812.99 = 3,924.53/x
  3. Step 3: Cross multiply
    7,110.98x = 9,812.99 × 3,924.53
  4. Step 4: Simplify right side
    7,110.98x = 38,511,316.00
  5. Step 5: Solve for x
    x = 38,511,316.00/7,110.98
  6. Step 6: Final answer
    x = 5,415.76

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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.