Home / 3,712.25-5,565.06-1,405.37

Finding the Fourth Proportional to 3,712.25, 5,565.06 and 1,405.37

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Solution

The fourth proportional to 3,712.25, 5,565.06 and 1,405.37 is: 2,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.25 : 5,565.06 = 1,405.37 : x
  2. Step 2: Convert to fraction form
    3,712.25/5,565.06 = 1,405.37/x
  3. Step 3: Cross multiply
    3,712.25x = 5,565.06 × 1,405.37
  4. Step 4: Simplify right side
    3,712.25x = 7,820,940.55
  5. Step 5: Solve for x
    x = 7,820,940.55/3,712.25
  6. Step 6: Final answer
    x = 2,106.80

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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.