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Finding the Fourth Proportional to 4,679.64, 6,460.07 and 4,039.07

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Solution

The fourth proportional to 4,679.64, 6,460.07 and 4,039.07 is: 5,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.64 : 6,460.07 = 4,039.07 : x
  2. Step 2: Convert to fraction form
    4,679.64/6,460.07 = 4,039.07/x
  3. Step 3: Cross multiply
    4,679.64x = 6,460.07 × 4,039.07
  4. Step 4: Simplify right side
    4,679.64x = 26,092,622.44
  5. Step 5: Solve for x
    x = 26,092,622.44/4,679.64
  6. Step 6: Final answer
    x = 5,575.78

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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.