Home / 7,281.05-10,912.43-3,116.16

Finding the Fourth Proportional to 7,281.05, 10,912.43 and 3,116.16

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Solution

The fourth proportional to 7,281.05, 10,912.43 and 3,116.16 is: 4,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.05 : 10,912.43 = 3,116.16 : x
  2. Step 2: Convert to fraction form
    7,281.05/10,912.43 = 3,116.16/x
  3. Step 3: Cross multiply
    7,281.05x = 10,912.43 × 3,116.16
  4. Step 4: Simplify right side
    7,281.05x = 34,004,877.87
  5. Step 5: Solve for x
    x = 34,004,877.87/7,281.05
  6. Step 6: Final answer
    x = 4,670.33

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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.