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Finding the Fourth Proportional to 4,257.10, 6,385.65 and 4,257.10

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Solution

The fourth proportional to 4,257.10, 6,385.65 and 4,257.10 is: 6,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.10 : 6,385.65 = 4,257.10 : x
  2. Step 2: Convert to fraction form
    4,257.10/6,385.65 = 4,257.10/x
  3. Step 3: Cross multiply
    4,257.10x = 6,385.65 × 4,257.10
  4. Step 4: Simplify right side
    4,257.10x = 27,184,350.62
  5. Step 5: Solve for x
    x = 27,184,350.62/4,257.10
  6. Step 6: Final answer
    x = 6,385.65

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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.