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Finding the Fourth Proportional to 6,253.70, 9,380.55 and 1,636.70

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Solution

The fourth proportional to 6,253.70, 9,380.55 and 1,636.70 is: 2,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,253.70 : 9,380.55 = 1,636.70 : x
  2. Step 2: Convert to fraction form
    6,253.70/9,380.55 = 1,636.70/x
  3. Step 3: Cross multiply
    6,253.70x = 9,380.55 × 1,636.70
  4. Step 4: Simplify right side
    6,253.70x = 15,353,146.19
  5. Step 5: Solve for x
    x = 15,353,146.19/6,253.70
  6. Step 6: Final answer
    x = 2,455.05

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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.