Home / 3,215.96-4,436.61-1,889.06

Finding the Fourth Proportional to 3,215.96, 4,436.61 and 1,889.06

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Solution

The fourth proportional to 3,215.96, 4,436.61 and 1,889.06 is: 2,606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.96 : 4,436.61 = 1,889.06 : x
  2. Step 2: Convert to fraction form
    3,215.96/4,436.61 = 1,889.06/x
  3. Step 3: Cross multiply
    3,215.96x = 4,436.61 × 1,889.06
  4. Step 4: Simplify right side
    3,215.96x = 8,381,033.58
  5. Step 5: Solve for x
    x = 8,381,033.58/3,215.96
  6. Step 6: Final answer
    x = 2,606.08

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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.