Home / 2,225.41-3,339.39-839.71

Finding the Fourth Proportional to 2,225.41, 3,339.39 and 839.71

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Solution

The fourth proportional to 2,225.41, 3,339.39 and 839.71 is: 1,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.41 : 3,339.39 = 839.71 : x
  2. Step 2: Convert to fraction form
    2,225.41/3,339.39 = 839.71/x
  3. Step 3: Cross multiply
    2,225.41x = 3,339.39 × 839.71
  4. Step 4: Simplify right side
    2,225.41x = 2,804,126.50
  5. Step 5: Solve for x
    x = 2,804,126.50/2,225.41
  6. Step 6: Final answer
    x = 1,260.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.