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Finding the Fourth Proportional to 4,893.78, 7,332.02 and 2,586.90

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Solution

The fourth proportional to 4,893.78, 7,332.02 and 2,586.90 is: 3,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.78 : 7,332.02 = 2,586.90 : x
  2. Step 2: Convert to fraction form
    4,893.78/7,332.02 = 2,586.90/x
  3. Step 3: Cross multiply
    4,893.78x = 7,332.02 × 2,586.90
  4. Step 4: Simplify right side
    4,893.78x = 18,967,202.54
  5. Step 5: Solve for x
    x = 18,967,202.54/4,893.78
  6. Step 6: Final answer
    x = 3,875.78

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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.