Home / 7,220.83-10,829.88-3,519.34

Finding the Fourth Proportional to 7,220.83, 10,829.88 and 3,519.34

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Solution

The fourth proportional to 7,220.83, 10,829.88 and 3,519.34 is: 5,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.83 : 10,829.88 = 3,519.34 : x
  2. Step 2: Convert to fraction form
    7,220.83/10,829.88 = 3,519.34/x
  3. Step 3: Cross multiply
    7,220.83x = 10,829.88 × 3,519.34
  4. Step 4: Simplify right side
    7,220.83x = 38,114,029.88
  5. Step 5: Solve for x
    x = 38,114,029.88/7,220.83
  6. Step 6: Final answer
    x = 5,278.34

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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.