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Finding the Fourth Proportional to 4,242.35, 6,329.08 and 4,012.72

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Solution

The fourth proportional to 4,242.35, 6,329.08 and 4,012.72 is: 5,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.35 : 6,329.08 = 4,012.72 : x
  2. Step 2: Convert to fraction form
    4,242.35/6,329.08 = 4,012.72/x
  3. Step 3: Cross multiply
    4,242.35x = 6,329.08 × 4,012.72
  4. Step 4: Simplify right side
    4,242.35x = 25,396,794.25
  5. Step 5: Solve for x
    x = 25,396,794.25/4,242.35
  6. Step 6: Final answer
    x = 5,986.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.