Home / 2,639.26-3,643.84-1,695.43

Finding the Fourth Proportional to 2,639.26, 3,643.84 and 1,695.43

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Solution

The fourth proportional to 2,639.26, 3,643.84 and 1,695.43 is: 2,340.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.26 : 3,643.84 = 1,695.43 : x
  2. Step 2: Convert to fraction form
    2,639.26/3,643.84 = 1,695.43/x
  3. Step 3: Cross multiply
    2,639.26x = 3,643.84 × 1,695.43
  4. Step 4: Simplify right side
    2,639.26x = 6,177,875.65
  5. Step 5: Solve for x
    x = 6,177,875.65/2,639.26
  6. Step 6: Final answer
    x = 2,340.76

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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.