Home / 3,315.60-4,962.60-2,581.20

Finding the Fourth Proportional to 3,315.60, 4,962.60 and 2,581.20

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Solution

The fourth proportional to 3,315.60, 4,962.60 and 2,581.20 is: 3,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.60 : 4,962.60 = 2,581.20 : x
  2. Step 2: Convert to fraction form
    3,315.60/4,962.60 = 2,581.20/x
  3. Step 3: Cross multiply
    3,315.60x = 4,962.60 × 2,581.20
  4. Step 4: Simplify right side
    3,315.60x = 12,809,463.12
  5. Step 5: Solve for x
    x = 12,809,463.12/3,315.60
  6. Step 6: Final answer
    x = 3,863.39

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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.