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Finding the Fourth Proportional to 2,889.57, 4,333.96 and 1,040.43

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Solution

The fourth proportional to 2,889.57, 4,333.96 and 1,040.43 is: 1,560.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.57 : 4,333.96 = 1,040.43 : x
  2. Step 2: Convert to fraction form
    2,889.57/4,333.96 = 1,040.43/x
  3. Step 3: Cross multiply
    2,889.57x = 4,333.96 × 1,040.43
  4. Step 4: Simplify right side
    2,889.57x = 4,509,176.80
  5. Step 5: Solve for x
    x = 4,509,176.80/2,889.57
  6. Step 6: Final answer
    x = 1,560.50

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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.