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Finding the Fourth Proportional to 4,333.66, 5,978.76 and 2,654.21

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Solution

The fourth proportional to 4,333.66, 5,978.76 and 2,654.21 is: 3,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,333.66 : 5,978.76 = 2,654.21 : x
  2. Step 2: Convert to fraction form
    4,333.66/5,978.76 = 2,654.21/x
  3. Step 3: Cross multiply
    4,333.66x = 5,978.76 × 2,654.21
  4. Step 4: Simplify right side
    4,333.66x = 15,868,884.58
  5. Step 5: Solve for x
    x = 15,868,884.58/4,333.66
  6. Step 6: Final answer
    x = 3,661.77

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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.