Home / 4,215.17-5,812.97-3,155.49

Finding the Fourth Proportional to 4,215.17, 5,812.97 and 3,155.49

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Solution

The fourth proportional to 4,215.17, 5,812.97 and 3,155.49 is: 4,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.17 : 5,812.97 = 3,155.49 : x
  2. Step 2: Convert to fraction form
    4,215.17/5,812.97 = 3,155.49/x
  3. Step 3: Cross multiply
    4,215.17x = 5,812.97 × 3,155.49
  4. Step 4: Simplify right side
    4,215.17x = 18,342,752.93
  5. Step 5: Solve for x
    x = 18,342,752.93/4,215.17
  6. Step 6: Final answer
    x = 4,351.60

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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.