Home / 3,523.12-5,281.39-1,213

Finding the Fourth Proportional to 3,523.12, 5,281.39 and 1,213

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Solution

The fourth proportional to 3,523.12, 5,281.39 and 1,213 is: 1,818.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,523.12 : 5,281.39 = 1,213 : x
  2. Step 2: Convert to fraction form
    3,523.12/5,281.39 = 1,213/x
  3. Step 3: Cross multiply
    3,523.12x = 5,281.39 × 1,213
  4. Step 4: Simplify right side
    3,523.12x = 6,406,326.07
  5. Step 5: Solve for x
    x = 6,406,326.07/3,523.12
  6. Step 6: Final answer
    x = 1,818.37

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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.