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Finding the Fourth Proportional to 4,649.55, 6,999.72 and 4,241.31

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Solution

The fourth proportional to 4,649.55, 6,999.72 and 4,241.31 is: 6,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.55 : 6,999.72 = 4,241.31 : x
  2. Step 2: Convert to fraction form
    4,649.55/6,999.72 = 4,241.31/x
  3. Step 3: Cross multiply
    4,649.55x = 6,999.72 × 4,241.31
  4. Step 4: Simplify right side
    4,649.55x = 29,687,982.43
  5. Step 5: Solve for x
    x = 29,687,982.43/4,649.55
  6. Step 6: Final answer
    x = 6,385.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.