Home / 3,712.32-5,569.92-1,405.44

Finding the Fourth Proportional to 3,712.32, 5,569.92 and 1,405.44

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Solution

The fourth proportional to 3,712.32, 5,569.92 and 1,405.44 is: 2,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.32 : 5,569.92 = 1,405.44 : x
  2. Step 2: Convert to fraction form
    3,712.32/5,569.92 = 1,405.44/x
  3. Step 3: Cross multiply
    3,712.32x = 5,569.92 × 1,405.44
  4. Step 4: Simplify right side
    3,712.32x = 7,828,188.36
  5. Step 5: Solve for x
    x = 7,828,188.36/3,712.32
  6. Step 6: Final answer
    x = 2,108.71

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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.