Home / 7,087.74-10,631.81-2,157.68

Finding the Fourth Proportional to 7,087.74, 10,631.81 and 2,157.68

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Solution

The fourth proportional to 7,087.74, 10,631.81 and 2,157.68 is: 3,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.74 : 10,631.81 = 2,157.68 : x
  2. Step 2: Convert to fraction form
    7,087.74/10,631.81 = 2,157.68/x
  3. Step 3: Cross multiply
    7,087.74x = 10,631.81 × 2,157.68
  4. Step 4: Simplify right side
    7,087.74x = 22,939,996.04
  5. Step 5: Solve for x
    x = 22,939,996.04/7,087.74
  6. Step 6: Final answer
    x = 3,236.57

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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.