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Finding the Fourth Proportional to 1,894.94, 2,609.59 and 1,888.79

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Solution

The fourth proportional to 1,894.94, 2,609.59 and 1,888.79 is: 2,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.94 : 2,609.59 = 1,888.79 : x
  2. Step 2: Convert to fraction form
    1,894.94/2,609.59 = 1,888.79/x
  3. Step 3: Cross multiply
    1,894.94x = 2,609.59 × 1,888.79
  4. Step 4: Simplify right side
    1,894.94x = 4,928,980.60
  5. Step 5: Solve for x
    x = 4,928,980.60/1,894.94
  6. Step 6: Final answer
    x = 2,601.12

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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.