Home / 4,215.43-5,819.81-3,748.40

Finding the Fourth Proportional to 4,215.43, 5,819.81 and 3,748.40

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Solution

The fourth proportional to 4,215.43, 5,819.81 and 3,748.40 is: 5,175.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.43 : 5,819.81 = 3,748.40 : x
  2. Step 2: Convert to fraction form
    4,215.43/5,819.81 = 3,748.40/x
  3. Step 3: Cross multiply
    4,215.43x = 5,819.81 × 3,748.40
  4. Step 4: Simplify right side
    4,215.43x = 21,814,927.96
  5. Step 5: Solve for x
    x = 21,814,927.96/4,215.43
  6. Step 6: Final answer
    x = 5,175.02

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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.