Home / 4,960.65-7,442.88-2,620.56

Finding the Fourth Proportional to 4,960.65, 7,442.88 and 2,620.56

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Solution

The fourth proportional to 4,960.65, 7,442.88 and 2,620.56 is: 3,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,960.65 : 7,442.88 = 2,620.56 : x
  2. Step 2: Convert to fraction form
    4,960.65/7,442.88 = 2,620.56/x
  3. Step 3: Cross multiply
    4,960.65x = 7,442.88 × 2,620.56
  4. Step 4: Simplify right side
    4,960.65x = 19,504,513.61
  5. Step 5: Solve for x
    x = 19,504,513.61/4,960.65
  6. Step 6: Final answer
    x = 3,931.85

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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.