Home / 5,101.80-7,660.32-4,167.60

Finding the Fourth Proportional to 5,101.80, 7,660.32 and 4,167.60

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Solution

The fourth proportional to 5,101.80, 7,660.32 and 4,167.60 is: 6,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.80 : 7,660.32 = 4,167.60 : x
  2. Step 2: Convert to fraction form
    5,101.80/7,660.32 = 4,167.60/x
  3. Step 3: Cross multiply
    5,101.80x = 7,660.32 × 4,167.60
  4. Step 4: Simplify right side
    5,101.80x = 31,925,149.63
  5. Step 5: Solve for x
    x = 31,925,149.63/5,101.80
  6. Step 6: Final answer
    x = 6,257.62

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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.