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Finding the Fourth Proportional to 3,614.72, 4,985.92 and 3,339.84

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Solution

The fourth proportional to 3,614.72, 4,985.92 and 3,339.84 is: 4,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.72 : 4,985.92 = 3,339.84 : x
  2. Step 2: Convert to fraction form
    3,614.72/4,985.92 = 3,339.84/x
  3. Step 3: Cross multiply
    3,614.72x = 4,985.92 × 3,339.84
  4. Step 4: Simplify right side
    3,614.72x = 16,652,175.05
  5. Step 5: Solve for x
    x = 16,652,175.05/3,614.72
  6. Step 6: Final answer
    x = 4,606.77

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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.