Home / 4,305.40-6,458.10-2,820.60

Finding the Fourth Proportional to 4,305.40, 6,458.10 and 2,820.60

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Solution

The fourth proportional to 4,305.40, 6,458.10 and 2,820.60 is: 4,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.40 : 6,458.10 = 2,820.60 : x
  2. Step 2: Convert to fraction form
    4,305.40/6,458.10 = 2,820.60/x
  3. Step 3: Cross multiply
    4,305.40x = 6,458.10 × 2,820.60
  4. Step 4: Simplify right side
    4,305.40x = 18,215,716.86
  5. Step 5: Solve for x
    x = 18,215,716.86/4,305.40
  6. Step 6: Final answer
    x = 4,230.90

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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.