Home / 5,129.73-7,078.86-3,242.34

Finding the Fourth Proportional to 5,129.73, 7,078.86 and 3,242.34

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Solution

The fourth proportional to 5,129.73, 7,078.86 and 3,242.34 is: 4,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.73 : 7,078.86 = 3,242.34 : x
  2. Step 2: Convert to fraction form
    5,129.73/7,078.86 = 3,242.34/x
  3. Step 3: Cross multiply
    5,129.73x = 7,078.86 × 3,242.34
  4. Step 4: Simplify right side
    5,129.73x = 22,952,070.93
  5. Step 5: Solve for x
    x = 22,952,070.93/5,129.73
  6. Step 6: Final answer
    x = 4,474.32

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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.