Home / 3,503.48-5,257.02-2,120.12

Finding the Fourth Proportional to 3,503.48, 5,257.02 and 2,120.12

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Solution

The fourth proportional to 3,503.48, 5,257.02 and 2,120.12 is: 3,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.48 : 5,257.02 = 2,120.12 : x
  2. Step 2: Convert to fraction form
    3,503.48/5,257.02 = 2,120.12/x
  3. Step 3: Cross multiply
    3,503.48x = 5,257.02 × 2,120.12
  4. Step 4: Simplify right side
    3,503.48x = 11,145,513.24
  5. Step 5: Solve for x
    x = 11,145,513.24/3,503.48
  6. Step 6: Final answer
    x = 3,181.27

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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.