Home / 7,239.65-10,860.83-2,857.14

Finding the Fourth Proportional to 7,239.65, 10,860.83 and 2,857.14

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Solution

The fourth proportional to 7,239.65, 10,860.83 and 2,857.14 is: 4,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.65 : 10,860.83 = 2,857.14 : x
  2. Step 2: Convert to fraction form
    7,239.65/10,860.83 = 2,857.14/x
  3. Step 3: Cross multiply
    7,239.65x = 10,860.83 × 2,857.14
  4. Step 4: Simplify right side
    7,239.65x = 31,030,897.54
  5. Step 5: Solve for x
    x = 31,030,897.54/7,239.65
  6. Step 6: Final answer
    x = 4,286.25

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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.