Home / 3,489.72-5,235.06-1,297.92

Finding the Fourth Proportional to 3,489.72, 5,235.06 and 1,297.92

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Solution

The fourth proportional to 3,489.72, 5,235.06 and 1,297.92 is: 1,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.72 : 5,235.06 = 1,297.92 : x
  2. Step 2: Convert to fraction form
    3,489.72/5,235.06 = 1,297.92/x
  3. Step 3: Cross multiply
    3,489.72x = 5,235.06 × 1,297.92
  4. Step 4: Simplify right side
    3,489.72x = 6,794,689.08
  5. Step 5: Solve for x
    x = 6,794,689.08/3,489.72
  6. Step 6: Final answer
    x = 1,947.06

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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.