Home / 3,872.23-5,809.11-1,407.13

Finding the Fourth Proportional to 3,872.23, 5,809.11 and 1,407.13

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Solution

The fourth proportional to 3,872.23, 5,809.11 and 1,407.13 is: 2,110.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.23 : 5,809.11 = 1,407.13 : x
  2. Step 2: Convert to fraction form
    3,872.23/5,809.11 = 1,407.13/x
  3. Step 3: Cross multiply
    3,872.23x = 5,809.11 × 1,407.13
  4. Step 4: Simplify right side
    3,872.23x = 8,174,172.95
  5. Step 5: Solve for x
    x = 8,174,172.95/3,872.23
  6. Step 6: Final answer
    x = 2,110.97

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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.