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Finding the Fourth Proportional to 5,350.72, 8,015.20 and 4,902.72

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Solution

The fourth proportional to 5,350.72, 8,015.20 and 4,902.72 is: 7,344.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,350.72 : 8,015.20 = 4,902.72 : x
  2. Step 2: Convert to fraction form
    5,350.72/8,015.20 = 4,902.72/x
  3. Step 3: Cross multiply
    5,350.72x = 8,015.20 × 4,902.72
  4. Step 4: Simplify right side
    5,350.72x = 39,296,281.34
  5. Step 5: Solve for x
    x = 39,296,281.34/5,350.72
  6. Step 6: Final answer
    x = 7,344.11

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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.