Home / 3,476.96-5,215.60-1,284.48

Finding the Fourth Proportional to 3,476.96, 5,215.60 and 1,284.48

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Solution

The fourth proportional to 3,476.96, 5,215.60 and 1,284.48 is: 1,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.96 : 5,215.60 = 1,284.48 : x
  2. Step 2: Convert to fraction form
    3,476.96/5,215.60 = 1,284.48/x
  3. Step 3: Cross multiply
    3,476.96x = 5,215.60 × 1,284.48
  4. Step 4: Simplify right side
    3,476.96x = 6,699,333.89
  5. Step 5: Solve for x
    x = 6,699,333.89/3,476.96
  6. Step 6: Final answer
    x = 1,926.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.