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Finding the Fourth Proportional to 2,477.46, 3,715.85 and 628.46

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Solution

The fourth proportional to 2,477.46, 3,715.85 and 628.46 is: 942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.46 : 3,715.85 = 628.46 : x
  2. Step 2: Convert to fraction form
    2,477.46/3,715.85 = 628.46/x
  3. Step 3: Cross multiply
    2,477.46x = 3,715.85 × 628.46
  4. Step 4: Simplify right side
    2,477.46x = 2,335,259.95
  5. Step 5: Solve for x
    x = 2,335,259.95/2,477.46
  6. Step 6: Final answer
    x = 942.60

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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.