Home / 3,630.16-5,014.20-3,157.12

Finding the Fourth Proportional to 3,630.16, 5,014.20 and 3,157.12

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Solution

The fourth proportional to 3,630.16, 5,014.20 and 3,157.12 is: 4,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.16 : 5,014.20 = 3,157.12 : x
  2. Step 2: Convert to fraction form
    3,630.16/5,014.20 = 3,157.12/x
  3. Step 3: Cross multiply
    3,630.16x = 5,014.20 × 3,157.12
  4. Step 4: Simplify right side
    3,630.16x = 15,830,431.10
  5. Step 5: Solve for x
    x = 15,830,431.10/3,630.16
  6. Step 6: Final answer
    x = 4,360.81

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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.