Home / 2,873.97-3,966.39-1,695

Finding the Fourth Proportional to 2,873.97, 3,966.39 and 1,695

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Solution

The fourth proportional to 2,873.97, 3,966.39 and 1,695 is: 2,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.97 : 3,966.39 = 1,695 : x
  2. Step 2: Convert to fraction form
    2,873.97/3,966.39 = 1,695/x
  3. Step 3: Cross multiply
    2,873.97x = 3,966.39 × 1,695
  4. Step 4: Simplify right side
    2,873.97x = 6,723,031.05
  5. Step 5: Solve for x
    x = 6,723,031.05/2,873.97
  6. Step 6: Final answer
    x = 2,339.28

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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.