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Finding the Fourth Proportional to 1,891.54, 2,604.36 and 1,716.38

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Solution

The fourth proportional to 1,891.54, 2,604.36 and 1,716.38 is: 2,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.54 : 2,604.36 = 1,716.38 : x
  2. Step 2: Convert to fraction form
    1,891.54/2,604.36 = 1,716.38/x
  3. Step 3: Cross multiply
    1,891.54x = 2,604.36 × 1,716.38
  4. Step 4: Simplify right side
    1,891.54x = 4,470,071.42
  5. Step 5: Solve for x
    x = 4,470,071.42/1,891.54
  6. Step 6: Final answer
    x = 2,363.19

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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.