Home / 5,276.81-7,912.29-2,159

Finding the Fourth Proportional to 5,276.81, 7,912.29 and 2,159

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Solution

The fourth proportional to 5,276.81, 7,912.29 and 2,159 is: 3,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.81 : 7,912.29 = 2,159 : x
  2. Step 2: Convert to fraction form
    5,276.81/7,912.29 = 2,159/x
  3. Step 3: Cross multiply
    5,276.81x = 7,912.29 × 2,159
  4. Step 4: Simplify right side
    5,276.81x = 17,082,623.32
  5. Step 5: Solve for x
    x = 17,082,623.32/5,276.81
  6. Step 6: Final answer
    x = 3,237.30

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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.