Home / 5,085.50-7,629.60-1,622.75

Finding the Fourth Proportional to 5,085.50, 7,629.60 and 1,622.75

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Solution

The fourth proportional to 5,085.50, 7,629.60 and 1,622.75 is: 2,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.50 : 7,629.60 = 1,622.75 : x
  2. Step 2: Convert to fraction form
    5,085.50/7,629.60 = 1,622.75/x
  3. Step 3: Cross multiply
    5,085.50x = 7,629.60 × 1,622.75
  4. Step 4: Simplify right side
    5,085.50x = 12,380,933.40
  5. Step 5: Solve for x
    x = 12,380,933.40/5,085.50
  6. Step 6: Final answer
    x = 2,434.56

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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.