Home / 3,815.61-5,267.13-2,622.31

Finding the Fourth Proportional to 3,815.61, 5,267.13 and 2,622.31

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Solution

The fourth proportional to 3,815.61, 5,267.13 and 2,622.31 is: 3,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.61 : 5,267.13 = 2,622.31 : x
  2. Step 2: Convert to fraction form
    3,815.61/5,267.13 = 2,622.31/x
  3. Step 3: Cross multiply
    3,815.61x = 5,267.13 × 2,622.31
  4. Step 4: Simplify right side
    3,815.61x = 13,812,024.67
  5. Step 5: Solve for x
    x = 13,812,024.67/3,815.61
  6. Step 6: Final answer
    x = 3,619.88

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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.