Home / 6,431.58-8,874.63-3,636.54

Finding the Fourth Proportional to 6,431.58, 8,874.63 and 3,636.54

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Solution

The fourth proportional to 6,431.58, 8,874.63 and 3,636.54 is: 5,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.58 : 8,874.63 = 3,636.54 : x
  2. Step 2: Convert to fraction form
    6,431.58/8,874.63 = 3,636.54/x
  3. Step 3: Cross multiply
    6,431.58x = 8,874.63 × 3,636.54
  4. Step 4: Simplify right side
    6,431.58x = 32,272,946.98
  5. Step 5: Solve for x
    x = 32,272,946.98/6,431.58
  6. Step 6: Final answer
    x = 5,017.89

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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.