Home / 3,132.33-4,313.43-2,800.65

Finding the Fourth Proportional to 3,132.33, 4,313.43 and 2,800.65

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Solution

The fourth proportional to 3,132.33, 4,313.43 and 2,800.65 is: 3,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.33 : 4,313.43 = 2,800.65 : x
  2. Step 2: Convert to fraction form
    3,132.33/4,313.43 = 2,800.65/x
  3. Step 3: Cross multiply
    3,132.33x = 4,313.43 × 2,800.65
  4. Step 4: Simplify right side
    3,132.33x = 12,080,407.73
  5. Step 5: Solve for x
    x = 12,080,407.73/3,132.33
  6. Step 6: Final answer
    x = 3,856.68

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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.