Home / 7,313.28-10,971-2,118.48

Finding the Fourth Proportional to 7,313.28, 10,971 and 2,118.48

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Solution

The fourth proportional to 7,313.28, 10,971 and 2,118.48 is: 3,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,313.28 : 10,971 = 2,118.48 : x
  2. Step 2: Convert to fraction form
    7,313.28/10,971 = 2,118.48/x
  3. Step 3: Cross multiply
    7,313.28x = 10,971 × 2,118.48
  4. Step 4: Simplify right side
    7,313.28x = 23,241,844.08
  5. Step 5: Solve for x
    x = 23,241,844.08/7,313.28
  6. Step 6: Final answer
    x = 3,178.03

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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.