Home / 7,128.22-10,671.48-4,157.58

Finding the Fourth Proportional to 7,128.22, 10,671.48 and 4,157.58

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Solution

The fourth proportional to 7,128.22, 10,671.48 and 4,157.58 is: 6,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.22 : 10,671.48 = 4,157.58 : x
  2. Step 2: Convert to fraction form
    7,128.22/10,671.48 = 4,157.58/x
  3. Step 3: Cross multiply
    7,128.22x = 10,671.48 × 4,157.58
  4. Step 4: Simplify right side
    7,128.22x = 44,367,531.82
  5. Step 5: Solve for x
    x = 44,367,531.82/7,128.22
  6. Step 6: Final answer
    x = 6,224.21

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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.