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Finding the Fourth Proportional to 4,889.16, 7,315.11 and 4,299.48

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Solution

The fourth proportional to 4,889.16, 7,315.11 and 4,299.48 is: 6,432.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.16 : 7,315.11 = 4,299.48 : x
  2. Step 2: Convert to fraction form
    4,889.16/7,315.11 = 4,299.48/x
  3. Step 3: Cross multiply
    4,889.16x = 7,315.11 × 4,299.48
  4. Step 4: Simplify right side
    4,889.16x = 31,451,169.14
  5. Step 5: Solve for x
    x = 31,451,169.14/4,889.16
  6. Step 6: Final answer
    x = 6,432.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.