Home / 4,635.39-6,394.45-3,142.80

Finding the Fourth Proportional to 4,635.39, 6,394.45 and 3,142.80

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Solution

The fourth proportional to 4,635.39, 6,394.45 and 3,142.80 is: 4,335.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,635.39 : 6,394.45 = 3,142.80 : x
  2. Step 2: Convert to fraction form
    4,635.39/6,394.45 = 3,142.80/x
  3. Step 3: Cross multiply
    4,635.39x = 6,394.45 × 3,142.80
  4. Step 4: Simplify right side
    4,635.39x = 20,096,477.46
  5. Step 5: Solve for x
    x = 20,096,477.46/4,635.39
  6. Step 6: Final answer
    x = 4,335.44

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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.