Home / 7,220.40-10,827.90-5,022.60

Finding the Fourth Proportional to 7,220.40, 10,827.90 and 5,022.60

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Solution

The fourth proportional to 7,220.40, 10,827.90 and 5,022.60 is: 7,532.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.40 : 10,827.90 = 5,022.60 : x
  2. Step 2: Convert to fraction form
    7,220.40/10,827.90 = 5,022.60/x
  3. Step 3: Cross multiply
    7,220.40x = 10,827.90 × 5,022.60
  4. Step 4: Simplify right side
    7,220.40x = 54,384,210.54
  5. Step 5: Solve for x
    x = 54,384,210.54/7,220.40
  6. Step 6: Final answer
    x = 7,532.02

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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.