Home / 3,125.05-4,301.61-2,829.80

Finding the Fourth Proportional to 3,125.05, 4,301.61 and 2,829.80

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Solution

The fourth proportional to 3,125.05, 4,301.61 and 2,829.80 is: 3,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.05 : 4,301.61 = 2,829.80 : x
  2. Step 2: Convert to fraction form
    3,125.05/4,301.61 = 2,829.80/x
  3. Step 3: Cross multiply
    3,125.05x = 4,301.61 × 2,829.80
  4. Step 4: Simplify right side
    3,125.05x = 12,172,696.12
  5. Step 5: Solve for x
    x = 12,172,696.12/3,125.05
  6. Step 6: Final answer
    x = 3,895.20

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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.