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Finding the Fourth Proportional to 4,640.41, 6,404.97 and 2,870.97

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Solution

The fourth proportional to 4,640.41, 6,404.97 and 2,870.97 is: 3,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.41 : 6,404.97 = 2,870.97 : x
  2. Step 2: Convert to fraction form
    4,640.41/6,404.97 = 2,870.97/x
  3. Step 3: Cross multiply
    4,640.41x = 6,404.97 × 2,870.97
  4. Step 4: Simplify right side
    4,640.41x = 18,388,462.37
  5. Step 5: Solve for x
    x = 18,388,462.37/4,640.41
  6. Step 6: Final answer
    x = 3,962.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.