Home / 5,445.32-8,161.88-2,155.92

Finding the Fourth Proportional to 5,445.32, 8,161.88 and 2,155.92

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Solution

The fourth proportional to 5,445.32, 8,161.88 and 2,155.92 is: 3,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.32 : 8,161.88 = 2,155.92 : x
  2. Step 2: Convert to fraction form
    5,445.32/8,161.88 = 2,155.92/x
  3. Step 3: Cross multiply
    5,445.32x = 8,161.88 × 2,155.92
  4. Step 4: Simplify right side
    5,445.32x = 17,596,360.33
  5. Step 5: Solve for x
    x = 17,596,360.33/5,445.32
  6. Step 6: Final answer
    x = 3,231.46

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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.