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Finding the Fourth Proportional to 6,441.90, 8,890.02 and 4,556.88

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Solution

The fourth proportional to 6,441.90, 8,890.02 and 4,556.88 is: 6,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441.90 : 8,890.02 = 4,556.88 : x
  2. Step 2: Convert to fraction form
    6,441.90/8,890.02 = 4,556.88/x
  3. Step 3: Cross multiply
    6,441.90x = 8,890.02 × 4,556.88
  4. Step 4: Simplify right side
    6,441.90x = 40,510,754.34
  5. Step 5: Solve for x
    x = 40,510,754.34/6,441.90
  6. Step 6: Final answer
    x = 6,288.63

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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.