Home / 5,086.46-7,017.09-2,989.64

Finding the Fourth Proportional to 5,086.46, 7,017.09 and 2,989.64

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Solution

The fourth proportional to 5,086.46, 7,017.09 and 2,989.64 is: 4,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.46 : 7,017.09 = 2,989.64 : x
  2. Step 2: Convert to fraction form
    5,086.46/7,017.09 = 2,989.64/x
  3. Step 3: Cross multiply
    5,086.46x = 7,017.09 × 2,989.64
  4. Step 4: Simplify right side
    5,086.46x = 20,978,572.95
  5. Step 5: Solve for x
    x = 20,978,572.95/5,086.46
  6. Step 6: Final answer
    x = 4,124.40

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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.