Home / 5,259.43-7,892.16-2,138.86

Finding the Fourth Proportional to 5,259.43, 7,892.16 and 2,138.86

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Solution

The fourth proportional to 5,259.43, 7,892.16 and 2,138.86 is: 3,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.43 : 7,892.16 = 2,138.86 : x
  2. Step 2: Convert to fraction form
    5,259.43/7,892.16 = 2,138.86/x
  3. Step 3: Cross multiply
    5,259.43x = 7,892.16 × 2,138.86
  4. Step 4: Simplify right side
    5,259.43x = 16,880,205.61
  5. Step 5: Solve for x
    x = 16,880,205.61/5,259.43
  6. Step 6: Final answer
    x = 3,209.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.