Home / 3,538.29-5,305.89-1,782.21

Finding the Fourth Proportional to 3,538.29, 5,305.89 and 1,782.21

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Solution

The fourth proportional to 3,538.29, 5,305.89 and 1,782.21 is: 2,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.29 : 5,305.89 = 1,782.21 : x
  2. Step 2: Convert to fraction form
    3,538.29/5,305.89 = 1,782.21/x
  3. Step 3: Cross multiply
    3,538.29x = 5,305.89 × 1,782.21
  4. Step 4: Simplify right side
    3,538.29x = 9,456,210.22
  5. Step 5: Solve for x
    x = 9,456,210.22/3,538.29
  6. Step 6: Final answer
    x = 2,672.54

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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.