Home / 3,315.45-4,973.18-2,581.05

Finding the Fourth Proportional to 3,315.45, 4,973.18 and 2,581.05

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Solution

The fourth proportional to 3,315.45, 4,973.18 and 2,581.05 is: 3,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.45 : 4,973.18 = 2,581.05 : x
  2. Step 2: Convert to fraction form
    3,315.45/4,973.18 = 2,581.05/x
  3. Step 3: Cross multiply
    3,315.45x = 4,973.18 × 2,581.05
  4. Step 4: Simplify right side
    3,315.45x = 12,836,013.33
  5. Step 5: Solve for x
    x = 12,836,013.33/3,315.45
  6. Step 6: Final answer
    x = 3,871.58

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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.