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Finding the Fourth Proportional to 5,910.40, 8,157.40 and 3,552.70

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Solution

The fourth proportional to 5,910.40, 8,157.40 and 3,552.70 is: 4,903.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.40 : 8,157.40 = 3,552.70 : x
  2. Step 2: Convert to fraction form
    5,910.40/8,157.40 = 3,552.70/x
  3. Step 3: Cross multiply
    5,910.40x = 8,157.40 × 3,552.70
  4. Step 4: Simplify right side
    5,910.40x = 28,980,794.98
  5. Step 5: Solve for x
    x = 28,980,794.98/5,910.40
  6. Step 6: Final answer
    x = 4,903.36

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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.