Home / 3,225.09-4,451.99-2,178.57

Finding the Fourth Proportional to 3,225.09, 4,451.99 and 2,178.57

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Solution

The fourth proportional to 3,225.09, 4,451.99 and 2,178.57 is: 3,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.09 : 4,451.99 = 2,178.57 : x
  2. Step 2: Convert to fraction form
    3,225.09/4,451.99 = 2,178.57/x
  3. Step 3: Cross multiply
    3,225.09x = 4,451.99 × 2,178.57
  4. Step 4: Simplify right side
    3,225.09x = 9,698,960.96
  5. Step 5: Solve for x
    x = 9,698,960.96/3,225.09
  6. Step 6: Final answer
    x = 3,007.35

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Half scale
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Double scale
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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.