Home / 2,084.87-2,876.30-1,338.71

Finding the Fourth Proportional to 2,084.87, 2,876.30 and 1,338.71

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Solution

The fourth proportional to 2,084.87, 2,876.30 and 1,338.71 is: 1,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.87 : 2,876.30 = 1,338.71 : x
  2. Step 2: Convert to fraction form
    2,084.87/2,876.30 = 1,338.71/x
  3. Step 3: Cross multiply
    2,084.87x = 2,876.30 × 1,338.71
  4. Step 4: Simplify right side
    2,084.87x = 3,850,532.07
  5. Step 5: Solve for x
    x = 3,850,532.07/2,084.87
  6. Step 6: Final answer
    x = 1,846.89

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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.