Home / 3,246.25-4,478.26-2,126.70

Finding the Fourth Proportional to 3,246.25, 4,478.26 and 2,126.70

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Solution

The fourth proportional to 3,246.25, 4,478.26 and 2,126.70 is: 2,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.25 : 4,478.26 = 2,126.70 : x
  2. Step 2: Convert to fraction form
    3,246.25/4,478.26 = 2,126.70/x
  3. Step 3: Cross multiply
    3,246.25x = 4,478.26 × 2,126.70
  4. Step 4: Simplify right side
    3,246.25x = 9,523,882.52
  5. Step 5: Solve for x
    x = 9,523,882.52/3,246.25
  6. Step 6: Final answer
    x = 2,933.81

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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.