Home / 3,239.10-4,857.45-1,047.90

Finding the Fourth Proportional to 3,239.10, 4,857.45 and 1,047.90

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Solution

The fourth proportional to 3,239.10, 4,857.45 and 1,047.90 is: 1,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.10 : 4,857.45 = 1,047.90 : x
  2. Step 2: Convert to fraction form
    3,239.10/4,857.45 = 1,047.90/x
  3. Step 3: Cross multiply
    3,239.10x = 4,857.45 × 1,047.90
  4. Step 4: Simplify right side
    3,239.10x = 5,090,121.86
  5. Step 5: Solve for x
    x = 5,090,121.86/3,239.10
  6. Step 6: Final answer
    x = 1,571.46

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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.