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Finding the Fourth Proportional to 6,390.96, 9,591.30 and 2,495.70

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Solution

The fourth proportional to 6,390.96, 9,591.30 and 2,495.70 is: 3,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.96 : 9,591.30 = 2,495.70 : x
  2. Step 2: Convert to fraction form
    6,390.96/9,591.30 = 2,495.70/x
  3. Step 3: Cross multiply
    6,390.96x = 9,591.30 × 2,495.70
  4. Step 4: Simplify right side
    6,390.96x = 23,937,007.41
  5. Step 5: Solve for x
    x = 23,937,007.41/6,390.96
  6. Step 6: Final answer
    x = 3,745.45

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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.