Home / 7,220.28-10,830.35-2,289.79

Finding the Fourth Proportional to 7,220.28, 10,830.35 and 2,289.79

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Solution

The fourth proportional to 7,220.28, 10,830.35 and 2,289.79 is: 3,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.28 : 10,830.35 = 2,289.79 : x
  2. Step 2: Convert to fraction form
    7,220.28/10,830.35 = 2,289.79/x
  3. Step 3: Cross multiply
    7,220.28x = 10,830.35 × 2,289.79
  4. Step 4: Simplify right side
    7,220.28x = 24,799,227.13
  5. Step 5: Solve for x
    x = 24,799,227.13/7,220.28
  6. Step 6: Final answer
    x = 3,434.66

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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.