Home / 4,729.60-7,129.82-4,412.44

Finding the Fourth Proportional to 4,729.60, 7,129.82 and 4,412.44

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Solution

The fourth proportional to 4,729.60, 7,129.82 and 4,412.44 is: 6,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,729.60 : 7,129.82 = 4,412.44 : x
  2. Step 2: Convert to fraction form
    4,729.60/7,129.82 = 4,412.44/x
  3. Step 3: Cross multiply
    4,729.60x = 7,129.82 × 4,412.44
  4. Step 4: Simplify right side
    4,729.60x = 31,459,902.96
  5. Step 5: Solve for x
    x = 31,459,902.96/4,729.60
  6. Step 6: Final answer
    x = 6,651.70

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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.