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Finding the Fourth Proportional to 5,416.70, 8,125.05 and 5,114.30

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Solution

The fourth proportional to 5,416.70, 8,125.05 and 5,114.30 is: 7,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.70 : 8,125.05 = 5,114.30 : x
  2. Step 2: Convert to fraction form
    5,416.70/8,125.05 = 5,114.30/x
  3. Step 3: Cross multiply
    5,416.70x = 8,125.05 × 5,114.30
  4. Step 4: Simplify right side
    5,416.70x = 41,553,943.22
  5. Step 5: Solve for x
    x = 41,553,943.22/5,416.70
  6. Step 6: Final answer
    x = 7,671.45

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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.