Home / 2,301.75-3,175.32-1,555.97

Finding the Fourth Proportional to 2,301.75, 3,175.32 and 1,555.97

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Solution

The fourth proportional to 2,301.75, 3,175.32 and 1,555.97 is: 2,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.75 : 3,175.32 = 1,555.97 : x
  2. Step 2: Convert to fraction form
    2,301.75/3,175.32 = 1,555.97/x
  3. Step 3: Cross multiply
    2,301.75x = 3,175.32 × 1,555.97
  4. Step 4: Simplify right side
    2,301.75x = 4,940,686.78
  5. Step 5: Solve for x
    x = 4,940,686.78/2,301.75
  6. Step 6: Final answer
    x = 2,146.50

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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.