Home / 4,815.39-6,645.17-2,690.82

Finding the Fourth Proportional to 4,815.39, 6,645.17 and 2,690.82

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Solution

The fourth proportional to 4,815.39, 6,645.17 and 2,690.82 is: 3,713.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.39 : 6,645.17 = 2,690.82 : x
  2. Step 2: Convert to fraction form
    4,815.39/6,645.17 = 2,690.82/x
  3. Step 3: Cross multiply
    4,815.39x = 6,645.17 × 2,690.82
  4. Step 4: Simplify right side
    4,815.39x = 17,880,942.89
  5. Step 5: Solve for x
    x = 17,880,942.89/4,815.39
  6. Step 6: Final answer
    x = 3,713.29

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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.