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Finding the Fourth Proportional to 4,138.54, 5,711.03 and 2,368.89

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Solution

The fourth proportional to 4,138.54, 5,711.03 and 2,368.89 is: 3,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.54 : 5,711.03 = 2,368.89 : x
  2. Step 2: Convert to fraction form
    4,138.54/5,711.03 = 2,368.89/x
  3. Step 3: Cross multiply
    4,138.54x = 5,711.03 × 2,368.89
  4. Step 4: Simplify right side
    4,138.54x = 13,528,801.86
  5. Step 5: Solve for x
    x = 13,528,801.86/4,138.54
  6. Step 6: Final answer
    x = 3,268.98

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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.