Home / 7,220.16-10,828.08-2,289.60

Finding the Fourth Proportional to 7,220.16, 10,828.08 and 2,289.60

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Solution

The fourth proportional to 7,220.16, 10,828.08 and 2,289.60 is: 3,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.16 : 10,828.08 = 2,289.60 : x
  2. Step 2: Convert to fraction form
    7,220.16/10,828.08 = 2,289.60/x
  3. Step 3: Cross multiply
    7,220.16x = 10,828.08 × 2,289.60
  4. Step 4: Simplify right side
    7,220.16x = 24,791,971.97
  5. Step 5: Solve for x
    x = 24,791,971.97/7,220.16
  6. Step 6: Final answer
    x = 3,433.72

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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.