Home / 4,640.38-6,960.65-1,520.72

Finding the Fourth Proportional to 4,640.38, 6,960.65 and 1,520.72

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Solution

The fourth proportional to 4,640.38, 6,960.65 and 1,520.72 is: 2,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.38 : 6,960.65 = 1,520.72 : x
  2. Step 2: Convert to fraction form
    4,640.38/6,960.65 = 1,520.72/x
  3. Step 3: Cross multiply
    4,640.38x = 6,960.65 × 1,520.72
  4. Step 4: Simplify right side
    4,640.38x = 10,585,157.26
  5. Step 5: Solve for x
    x = 10,585,157.26/4,640.38
  6. Step 6: Final answer
    x = 2,281.10

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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.