Home / 3,476.72-5,215.58-1,284.88

Finding the Fourth Proportional to 3,476.72, 5,215.58 and 1,284.88

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Solution

The fourth proportional to 3,476.72, 5,215.58 and 1,284.88 is: 1,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.72 : 5,215.58 = 1,284.88 : x
  2. Step 2: Convert to fraction form
    3,476.72/5,215.58 = 1,284.88/x
  3. Step 3: Cross multiply
    3,476.72x = 5,215.58 × 1,284.88
  4. Step 4: Simplify right side
    3,476.72x = 6,701,394.43
  5. Step 5: Solve for x
    x = 6,701,394.43/3,476.72
  6. Step 6: Final answer
    x = 1,927.50

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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.