Home / 2,636.66-3,639.92-1,693.85

Finding the Fourth Proportional to 2,636.66, 3,639.92 and 1,693.85

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Solution

The fourth proportional to 2,636.66, 3,639.92 and 1,693.85 is: 2,338.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.66 : 3,639.92 = 1,693.85 : x
  2. Step 2: Convert to fraction form
    2,636.66/3,639.92 = 1,693.85/x
  3. Step 3: Cross multiply
    2,636.66x = 3,639.92 × 1,693.85
  4. Step 4: Simplify right side
    2,636.66x = 6,165,451.82
  5. Step 5: Solve for x
    x = 6,165,451.82/2,636.66
  6. Step 6: Final answer
    x = 2,338.35

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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.