Home / 3,215.42-4,437.06-1,889

Finding the Fourth Proportional to 3,215.42, 4,437.06 and 1,889

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Solution

The fourth proportional to 3,215.42, 4,437.06 and 1,889 is: 2,606.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.42 : 4,437.06 = 1,889 : x
  2. Step 2: Convert to fraction form
    3,215.42/4,437.06 = 1,889/x
  3. Step 3: Cross multiply
    3,215.42x = 4,437.06 × 1,889
  4. Step 4: Simplify right side
    3,215.42x = 8,381,606.34
  5. Step 5: Solve for x
    x = 8,381,606.34/3,215.42
  6. Step 6: Final answer
    x = 2,606.69

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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.