Home / 2,301.66-3,175.20-1,638.90

Finding the Fourth Proportional to 2,301.66, 3,175.20 and 1,638.90

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Solution

The fourth proportional to 2,301.66, 3,175.20 and 1,638.90 is: 2,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.66 : 3,175.20 = 1,638.90 : x
  2. Step 2: Convert to fraction form
    2,301.66/3,175.20 = 1,638.90/x
  3. Step 3: Cross multiply
    2,301.66x = 3,175.20 × 1,638.90
  4. Step 4: Simplify right side
    2,301.66x = 5,203,835.28
  5. Step 5: Solve for x
    x = 5,203,835.28/2,301.66
  6. Step 6: Final answer
    x = 2,260.91

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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.