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Finding the Fourth Proportional to 3,154.55, 4,731.83 and 3,149.99

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Solution

The fourth proportional to 3,154.55, 4,731.83 and 3,149.99 is: 4,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.55 : 4,731.83 = 3,149.99 : x
  2. Step 2: Convert to fraction form
    3,154.55/4,731.83 = 3,149.99/x
  3. Step 3: Cross multiply
    3,154.55x = 4,731.83 × 3,149.99
  4. Step 4: Simplify right side
    3,154.55x = 14,905,177.77
  5. Step 5: Solve for x
    x = 14,905,177.77/3,154.55
  6. Step 6: Final answer
    x = 4,724.98

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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.