Home / 7,220.69-10,829.48-4,216.72

Finding the Fourth Proportional to 7,220.69, 10,829.48 and 4,216.72

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Solution

The fourth proportional to 7,220.69, 10,829.48 and 4,216.72 is: 6,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.69 : 10,829.48 = 4,216.72 : x
  2. Step 2: Convert to fraction form
    7,220.69/10,829.48 = 4,216.72/x
  3. Step 3: Cross multiply
    7,220.69x = 10,829.48 × 4,216.72
  4. Step 4: Simplify right side
    7,220.69x = 45,664,863.82
  5. Step 5: Solve for x
    x = 45,664,863.82/7,220.69
  6. Step 6: Final answer
    x = 6,324.17

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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.