Home / 5,147.37-7,103.10-3,157.59

Finding the Fourth Proportional to 5,147.37, 7,103.10 and 3,157.59

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Solution

The fourth proportional to 5,147.37, 7,103.10 and 3,157.59 is: 4,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.37 : 7,103.10 = 3,157.59 : x
  2. Step 2: Convert to fraction form
    5,147.37/7,103.10 = 3,157.59/x
  3. Step 3: Cross multiply
    5,147.37x = 7,103.10 × 3,157.59
  4. Step 4: Simplify right side
    5,147.37x = 22,428,677.53
  5. Step 5: Solve for x
    x = 22,428,677.53/5,147.37
  6. Step 6: Final answer
    x = 4,357.31

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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.