Home / 5,157.36-7,116.12-3,168.24

Finding the Fourth Proportional to 5,157.36, 7,116.12 and 3,168.24

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Solution

The fourth proportional to 5,157.36, 7,116.12 and 3,168.24 is: 4,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.36 : 7,116.12 = 3,168.24 : x
  2. Step 2: Convert to fraction form
    5,157.36/7,116.12 = 3,168.24/x
  3. Step 3: Cross multiply
    5,157.36x = 7,116.12 × 3,168.24
  4. Step 4: Simplify right side
    5,157.36x = 22,545,576.03
  5. Step 5: Solve for x
    x = 22,545,576.03/5,157.36
  6. Step 6: Final answer
    x = 4,371.53

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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.