Home / 3,790.99-5,220.68-3,255.58

Finding the Fourth Proportional to 3,790.99, 5,220.68 and 3,255.58

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Solution

The fourth proportional to 3,790.99, 5,220.68 and 3,255.58 is: 4,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.99 : 5,220.68 = 3,255.58 : x
  2. Step 2: Convert to fraction form
    3,790.99/5,220.68 = 3,255.58/x
  3. Step 3: Cross multiply
    3,790.99x = 5,220.68 × 3,255.58
  4. Step 4: Simplify right side
    3,790.99x = 16,996,341.39
  5. Step 5: Solve for x
    x = 16,996,341.39/3,790.99
  6. Step 6: Final answer
    x = 4,483.35

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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.