Home / 3,311.45-4,962.51-2,615.05

Finding the Fourth Proportional to 3,311.45, 4,962.51 and 2,615.05

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Solution

The fourth proportional to 3,311.45, 4,962.51 and 2,615.05 is: 3,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.45 : 4,962.51 = 2,615.05 : x
  2. Step 2: Convert to fraction form
    3,311.45/4,962.51 = 2,615.05/x
  3. Step 3: Cross multiply
    3,311.45x = 4,962.51 × 2,615.05
  4. Step 4: Simplify right side
    3,311.45x = 12,977,199.37
  5. Step 5: Solve for x
    x = 12,977,199.37/3,311.45
  6. Step 6: Final answer
    x = 3,918.89

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1.5x scale

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.