Home / 1,785.12-2,670.96-1,238.36

Finding the Fourth Proportional to 1,785.12, 2,670.96 and 1,238.36

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Solution

The fourth proportional to 1,785.12, 2,670.96 and 1,238.36 is: 1,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.12 : 2,670.96 = 1,238.36 : x
  2. Step 2: Convert to fraction form
    1,785.12/2,670.96 = 1,238.36/x
  3. Step 3: Cross multiply
    1,785.12x = 2,670.96 × 1,238.36
  4. Step 4: Simplify right side
    1,785.12x = 3,307,610.03
  5. Step 5: Solve for x
    x = 3,307,610.03/1,785.12
  6. Step 6: Final answer
    x = 1,852.88

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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.