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Finding the Fourth Proportional to 3,858.79, 5,326.49 and 2,346.37

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Solution

The fourth proportional to 3,858.79, 5,326.49 and 2,346.37 is: 3,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.79 : 5,326.49 = 2,346.37 : x
  2. Step 2: Convert to fraction form
    3,858.79/5,326.49 = 2,346.37/x
  3. Step 3: Cross multiply
    3,858.79x = 5,326.49 × 2,346.37
  4. Step 4: Simplify right side
    3,858.79x = 12,497,916.34
  5. Step 5: Solve for x
    x = 12,497,916.34/3,858.79
  6. Step 6: Final answer
    x = 3,238.82

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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.