Home / 3,459.45-4,775.46-2,620.15

Finding the Fourth Proportional to 3,459.45, 4,775.46 and 2,620.15

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Solution

The fourth proportional to 3,459.45, 4,775.46 and 2,620.15 is: 3,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.45 : 4,775.46 = 2,620.15 : x
  2. Step 2: Convert to fraction form
    3,459.45/4,775.46 = 2,620.15/x
  3. Step 3: Cross multiply
    3,459.45x = 4,775.46 × 2,620.15
  4. Step 4: Simplify right side
    3,459.45x = 12,512,421.52
  5. Step 5: Solve for x
    x = 12,512,421.52/3,459.45
  6. Step 6: Final answer
    x = 3,616.88

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1.5x scale

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.