Home / 7,125.14-10,685-2,849.58

Finding the Fourth Proportional to 7,125.14, 10,685 and 2,849.58

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Solution

The fourth proportional to 7,125.14, 10,685 and 2,849.58 is: 4,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.14 : 10,685 = 2,849.58 : x
  2. Step 2: Convert to fraction form
    7,125.14/10,685 = 2,849.58/x
  3. Step 3: Cross multiply
    7,125.14x = 10,685 × 2,849.58
  4. Step 4: Simplify right side
    7,125.14x = 30,447,762.30
  5. Step 5: Solve for x
    x = 30,447,762.30/7,125.14
  6. Step 6: Final answer
    x = 4,273.29

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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.