Home / 3,213.62-4,821.80-1,135.10

Finding the Fourth Proportional to 3,213.62, 4,821.80 and 1,135.10

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Solution

The fourth proportional to 3,213.62, 4,821.80 and 1,135.10 is: 1,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.62 : 4,821.80 = 1,135.10 : x
  2. Step 2: Convert to fraction form
    3,213.62/4,821.80 = 1,135.10/x
  3. Step 3: Cross multiply
    3,213.62x = 4,821.80 × 1,135.10
  4. Step 4: Simplify right side
    3,213.62x = 5,473,225.18
  5. Step 5: Solve for x
    x = 5,473,225.18/3,213.62
  6. Step 6: Final answer
    x = 1,703.13

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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.