Home / 2,350.06-3,243.01-1,287.85

Finding the Fourth Proportional to 2,350.06, 3,243.01 and 1,287.85

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Solution

The fourth proportional to 2,350.06, 3,243.01 and 1,287.85 is: 1,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,350.06 : 3,243.01 = 1,287.85 : x
  2. Step 2: Convert to fraction form
    2,350.06/3,243.01 = 1,287.85/x
  3. Step 3: Cross multiply
    2,350.06x = 3,243.01 × 1,287.85
  4. Step 4: Simplify right side
    2,350.06x = 4,176,511.22
  5. Step 5: Solve for x
    x = 4,176,511.22/2,350.06
  6. Step 6: Final answer
    x = 1,777.19

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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.