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Finding the Fourth Proportional to 5,390.92, 8,069.10 and 4,609.48

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Solution

The fourth proportional to 5,390.92, 8,069.10 and 4,609.48 is: 6,899.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.92 : 8,069.10 = 4,609.48 : x
  2. Step 2: Convert to fraction form
    5,390.92/8,069.10 = 4,609.48/x
  3. Step 3: Cross multiply
    5,390.92x = 8,069.10 × 4,609.48
  4. Step 4: Simplify right side
    5,390.92x = 37,194,355.07
  5. Step 5: Solve for x
    x = 37,194,355.07/5,390.92
  6. Step 6: Final answer
    x = 6,899.44

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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.