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Finding the Fourth Proportional to 6,310.86, 9,455.50 and 4,458.40

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Solution

The fourth proportional to 6,310.86, 9,455.50 and 4,458.40 is: 6,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.86 : 9,455.50 = 4,458.40 : x
  2. Step 2: Convert to fraction form
    6,310.86/9,455.50 = 4,458.40/x
  3. Step 3: Cross multiply
    6,310.86x = 9,455.50 × 4,458.40
  4. Step 4: Simplify right side
    6,310.86x = 42,156,401.20
  5. Step 5: Solve for x
    x = 42,156,401.20/6,310.86
  6. Step 6: Final answer
    x = 6,679.98

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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.