Home / 7,220.07-10,826.19-3,321

Finding the Fourth Proportional to 7,220.07, 10,826.19 and 3,321

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Solution

The fourth proportional to 7,220.07, 10,826.19 and 3,321 is: 4,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.07 : 10,826.19 = 3,321 : x
  2. Step 2: Convert to fraction form
    7,220.07/10,826.19 = 3,321/x
  3. Step 3: Cross multiply
    7,220.07x = 10,826.19 × 3,321
  4. Step 4: Simplify right side
    7,220.07x = 35,953,776.99
  5. Step 5: Solve for x
    x = 35,953,776.99/7,220.07
  6. Step 6: Final answer
    x = 4,979.70

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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.