Home / 6,391.53-9,586.52-2,231.20

Finding the Fourth Proportional to 6,391.53, 9,586.52 and 2,231.20

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Solution

The fourth proportional to 6,391.53, 9,586.52 and 2,231.20 is: 3,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.53 : 9,586.52 = 2,231.20 : x
  2. Step 2: Convert to fraction form
    6,391.53/9,586.52 = 2,231.20/x
  3. Step 3: Cross multiply
    6,391.53x = 9,586.52 × 2,231.20
  4. Step 4: Simplify right side
    6,391.53x = 21,389,403.40
  5. Step 5: Solve for x
    x = 21,389,403.40/6,391.53
  6. Step 6: Final answer
    x = 3,346.53

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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.