Home / 7,207.79-10,812.29-2,277.32

Finding the Fourth Proportional to 7,207.79, 10,812.29 and 2,277.32

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Solution

The fourth proportional to 7,207.79, 10,812.29 and 2,277.32 is: 3,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.79 : 10,812.29 = 2,277.32 : x
  2. Step 2: Convert to fraction form
    7,207.79/10,812.29 = 2,277.32/x
  3. Step 3: Cross multiply
    7,207.79x = 10,812.29 × 2,277.32
  4. Step 4: Simplify right side
    7,207.79x = 24,622,978.81
  5. Step 5: Solve for x
    x = 24,622,978.81/7,207.79
  6. Step 6: Final answer
    x = 3,416.16

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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.