Home / 5,921.36-8,172.46-3,531.64

Finding the Fourth Proportional to 5,921.36, 8,172.46 and 3,531.64

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Solution

The fourth proportional to 5,921.36, 8,172.46 and 3,531.64 is: 4,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.36 : 8,172.46 = 3,531.64 : x
  2. Step 2: Convert to fraction form
    5,921.36/8,172.46 = 3,531.64/x
  3. Step 3: Cross multiply
    5,921.36x = 8,172.46 × 3,531.64
  4. Step 4: Simplify right side
    5,921.36x = 28,862,186.63
  5. Step 5: Solve for x
    x = 28,862,186.63/5,921.36
  6. Step 6: Final answer
    x = 4,874.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.