Home / 2,889.57-3,987.66-1,695.26

Finding the Fourth Proportional to 2,889.57, 3,987.66 and 1,695.26

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Solution

The fourth proportional to 2,889.57, 3,987.66 and 1,695.26 is: 2,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.57 : 3,987.66 = 1,695.26 : x
  2. Step 2: Convert to fraction form
    2,889.57/3,987.66 = 1,695.26/x
  3. Step 3: Cross multiply
    2,889.57x = 3,987.66 × 1,695.26
  4. Step 4: Simplify right side
    2,889.57x = 6,760,120.49
  5. Step 5: Solve for x
    x = 6,760,120.49/2,889.57
  6. Step 6: Final answer
    x = 2,339.49

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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.