Home / 2,175.03-3,263.16-857.97

Finding the Fourth Proportional to 2,175.03, 3,263.16 and 857.97

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Solution

The fourth proportional to 2,175.03, 3,263.16 and 857.97 is: 1,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.03 : 3,263.16 = 857.97 : x
  2. Step 2: Convert to fraction form
    2,175.03/3,263.16 = 857.97/x
  3. Step 3: Cross multiply
    2,175.03x = 3,263.16 × 857.97
  4. Step 4: Simplify right side
    2,175.03x = 2,799,693.39
  5. Step 5: Solve for x
    x = 2,799,693.39/2,175.03
  6. Step 6: Final answer
    x = 1,287.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.