Home / 7,217.10-9,959.73-4,072.68

Finding the Fourth Proportional to 7,217.10, 9,959.73 and 4,072.68

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Solution

The fourth proportional to 7,217.10, 9,959.73 and 4,072.68 is: 5,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.10 : 9,959.73 = 4,072.68 : x
  2. Step 2: Convert to fraction form
    7,217.10/9,959.73 = 4,072.68/x
  3. Step 3: Cross multiply
    7,217.10x = 9,959.73 × 4,072.68
  4. Step 4: Simplify right side
    7,217.10x = 40,562,793.18
  5. Step 5: Solve for x
    x = 40,562,793.18/7,217.10
  6. Step 6: Final answer
    x = 5,620.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.