Home / 3,173.59-4,378.21-2,125.99

Finding the Fourth Proportional to 3,173.59, 4,378.21 and 2,125.99

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Solution

The fourth proportional to 3,173.59, 4,378.21 and 2,125.99 is: 2,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.59 : 4,378.21 = 2,125.99 : x
  2. Step 2: Convert to fraction form
    3,173.59/4,378.21 = 2,125.99/x
  3. Step 3: Cross multiply
    3,173.59x = 4,378.21 × 2,125.99
  4. Step 4: Simplify right side
    3,173.59x = 9,308,030.68
  5. Step 5: Solve for x
    x = 9,308,030.68/3,173.59
  6. Step 6: Final answer
    x = 2,932.97

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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.