Home / 7,179.64-10,778.10-4,276.60

Finding the Fourth Proportional to 7,179.64, 10,778.10 and 4,276.60

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Solution

The fourth proportional to 7,179.64, 10,778.10 and 4,276.60 is: 6,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.64 : 10,778.10 = 4,276.60 : x
  2. Step 2: Convert to fraction form
    7,179.64/10,778.10 = 4,276.60/x
  3. Step 3: Cross multiply
    7,179.64x = 10,778.10 × 4,276.60
  4. Step 4: Simplify right side
    7,179.64x = 46,093,622.46
  5. Step 5: Solve for x
    x = 46,093,622.46/7,179.64
  6. Step 6: Final answer
    x = 6,420.05

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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.