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Finding the Fourth Proportional to 2,592.33, 3,888.39 and 860.94

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Solution

The fourth proportional to 2,592.33, 3,888.39 and 860.94 is: 1,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592.33 : 3,888.39 = 860.94 : x
  2. Step 2: Convert to fraction form
    2,592.33/3,888.39 = 860.94/x
  3. Step 3: Cross multiply
    2,592.33x = 3,888.39 × 860.94
  4. Step 4: Simplify right side
    2,592.33x = 3,347,670.49
  5. Step 5: Solve for x
    x = 3,347,670.49/2,592.33
  6. Step 6: Final answer
    x = 1,291.38

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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.