Home / 4,291.24-6,436.38-1,213

Finding the Fourth Proportional to 4,291.24, 6,436.38 and 1,213

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Solution

The fourth proportional to 4,291.24, 6,436.38 and 1,213 is: 1,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.24 : 6,436.38 = 1,213 : x
  2. Step 2: Convert to fraction form
    4,291.24/6,436.38 = 1,213/x
  3. Step 3: Cross multiply
    4,291.24x = 6,436.38 × 1,213
  4. Step 4: Simplify right side
    4,291.24x = 7,807,328.94
  5. Step 5: Solve for x
    x = 7,807,328.94/4,291.24
  6. Step 6: Final answer
    x = 1,819.36

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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.