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Finding the Fourth Proportional to 1,953.49, 2,696.16 and 1,888.62

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Solution

The fourth proportional to 1,953.49, 2,696.16 and 1,888.62 is: 2,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.49 : 2,696.16 = 1,888.62 : x
  2. Step 2: Convert to fraction form
    1,953.49/2,696.16 = 1,888.62/x
  3. Step 3: Cross multiply
    1,953.49x = 2,696.16 × 1,888.62
  4. Step 4: Simplify right side
    1,953.49x = 5,092,021.70
  5. Step 5: Solve for x
    x = 5,092,021.70/1,953.49
  6. Step 6: Final answer
    x = 2,606.63

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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.