Home / 5,108.87-7,656.22-2,328.75

Finding the Fourth Proportional to 5,108.87, 7,656.22 and 2,328.75

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Solution

The fourth proportional to 5,108.87, 7,656.22 and 2,328.75 is: 3,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.87 : 7,656.22 = 2,328.75 : x
  2. Step 2: Convert to fraction form
    5,108.87/7,656.22 = 2,328.75/x
  3. Step 3: Cross multiply
    5,108.87x = 7,656.22 × 2,328.75
  4. Step 4: Simplify right side
    5,108.87x = 17,829,410.68
  5. Step 5: Solve for x
    x = 17,829,410.68/5,108.87
  6. Step 6: Final answer
    x = 3,489.89

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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.