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Finding the Fourth Proportional to 4,889.43, 7,334.71 and 1,770.90

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Solution

The fourth proportional to 4,889.43, 7,334.71 and 1,770.90 is: 2,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.43 : 7,334.71 = 1,770.90 : x
  2. Step 2: Convert to fraction form
    4,889.43/7,334.71 = 1,770.90/x
  3. Step 3: Cross multiply
    4,889.43x = 7,334.71 × 1,770.90
  4. Step 4: Simplify right side
    4,889.43x = 12,989,037.94
  5. Step 5: Solve for x
    x = 12,989,037.94/4,889.43
  6. Step 6: Final answer
    x = 2,656.56

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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.