Home / 5,636.28-8,425.60-4,161.72

Finding the Fourth Proportional to 5,636.28, 8,425.60 and 4,161.72

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Solution

The fourth proportional to 5,636.28, 8,425.60 and 4,161.72 is: 6,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.28 : 8,425.60 = 4,161.72 : x
  2. Step 2: Convert to fraction form
    5,636.28/8,425.60 = 4,161.72/x
  3. Step 3: Cross multiply
    5,636.28x = 8,425.60 × 4,161.72
  4. Step 4: Simplify right side
    5,636.28x = 35,064,988.03
  5. Step 5: Solve for x
    x = 35,064,988.03/5,636.28
  6. Step 6: Final answer
    x = 6,221.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.