Home / 4,427.40-6,638.01-1,960.89

Finding the Fourth Proportional to 4,427.40, 6,638.01 and 1,960.89

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Solution

The fourth proportional to 4,427.40, 6,638.01 and 1,960.89 is: 2,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.40 : 6,638.01 = 1,960.89 : x
  2. Step 2: Convert to fraction form
    4,427.40/6,638.01 = 1,960.89/x
  3. Step 3: Cross multiply
    4,427.40x = 6,638.01 × 1,960.89
  4. Step 4: Simplify right side
    4,427.40x = 13,016,407.43
  5. Step 5: Solve for x
    x = 13,016,407.43/4,427.40
  6. Step 6: Final answer
    x = 2,939.97

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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.