Home / 7,125.14-10,688.72-2,195.18

Finding the Fourth Proportional to 7,125.14, 10,688.72 and 2,195.18

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Solution

The fourth proportional to 7,125.14, 10,688.72 and 2,195.18 is: 3,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.14 : 10,688.72 = 2,195.18 : x
  2. Step 2: Convert to fraction form
    7,125.14/10,688.72 = 2,195.18/x
  3. Step 3: Cross multiply
    7,125.14x = 10,688.72 × 2,195.18
  4. Step 4: Simplify right side
    7,125.14x = 23,463,664.37
  5. Step 5: Solve for x
    x = 23,463,664.37/7,125.14
  6. Step 6: Final answer
    x = 3,293.08

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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.