Home / 3,215.32-4,437.25-1,889.00

Finding the Fourth Proportional to 3,215.32, 4,437.25 and 1,889.00

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Solution

The fourth proportional to 3,215.32, 4,437.25 and 1,889.00 is: 2,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.32 : 4,437.25 = 1,889.00 : x
  2. Step 2: Convert to fraction form
    3,215.32/4,437.25 = 1,889.00/x
  3. Step 3: Cross multiply
    3,215.32x = 4,437.25 × 1,889.00
  4. Step 4: Simplify right side
    3,215.32x = 8,381,954.98
  5. Step 5: Solve for x
    x = 8,381,954.98/3,215.32
  6. Step 6: Final answer
    x = 2,606.88

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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.