Home / 3,230.72-4,453.76-2,670.24

Finding the Fourth Proportional to 3,230.72, 4,453.76 and 2,670.24

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Solution

The fourth proportional to 3,230.72, 4,453.76 and 2,670.24 is: 3,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.72 : 4,453.76 = 2,670.24 : x
  2. Step 2: Convert to fraction form
    3,230.72/4,453.76 = 2,670.24/x
  3. Step 3: Cross multiply
    3,230.72x = 4,453.76 × 2,670.24
  4. Step 4: Simplify right side
    3,230.72x = 11,892,608.10
  5. Step 5: Solve for x
    x = 11,892,608.10/3,230.72
  6. Step 6: Final answer
    x = 3,681.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.