Home / 7,220.12-10,830.24-2,289.38

Finding the Fourth Proportional to 7,220.12, 10,830.24 and 2,289.38

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Solution

The fourth proportional to 7,220.12, 10,830.24 and 2,289.38 is: 3,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.12 : 10,830.24 = 2,289.38 : x
  2. Step 2: Convert to fraction form
    7,220.12/10,830.24 = 2,289.38/x
  3. Step 3: Cross multiply
    7,220.12x = 10,830.24 × 2,289.38
  4. Step 4: Simplify right side
    7,220.12x = 24,794,480.70
  5. Step 5: Solve for x
    x = 24,794,480.70/7,220.12
  6. Step 6: Final answer
    x = 3,434.08

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1.5x scale

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.