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Finding the Fourth Proportional to 4,256.70, 6,385.05 and 2,069.70

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Solution

The fourth proportional to 4,256.70, 6,385.05 and 2,069.70 is: 3,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.70 : 6,385.05 = 2,069.70 : x
  2. Step 2: Convert to fraction form
    4,256.70/6,385.05 = 2,069.70/x
  3. Step 3: Cross multiply
    4,256.70x = 6,385.05 × 2,069.70
  4. Step 4: Simplify right side
    4,256.70x = 13,215,137.99
  5. Step 5: Solve for x
    x = 13,215,137.99/4,256.70
  6. Step 6: Final answer
    x = 3,104.55

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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.