Home / 4,151.82-5,730.45-2,828.70

Finding the Fourth Proportional to 4,151.82, 5,730.45 and 2,828.70

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Solution

The fourth proportional to 4,151.82, 5,730.45 and 2,828.70 is: 3,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.82 : 5,730.45 = 2,828.70 : x
  2. Step 2: Convert to fraction form
    4,151.82/5,730.45 = 2,828.70/x
  3. Step 3: Cross multiply
    4,151.82x = 5,730.45 × 2,828.70
  4. Step 4: Simplify right side
    4,151.82x = 16,209,723.92
  5. Step 5: Solve for x
    x = 16,209,723.92/4,151.82
  6. Step 6: Final answer
    x = 3,904.25

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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.