Home / 6,385.80-8,816.94-4,150.20

Finding the Fourth Proportional to 6,385.80, 8,816.94 and 4,150.20

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Solution

The fourth proportional to 6,385.80, 8,816.94 and 4,150.20 is: 5,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.80 : 8,816.94 = 4,150.20 : x
  2. Step 2: Convert to fraction form
    6,385.80/8,816.94 = 4,150.20/x
  3. Step 3: Cross multiply
    6,385.80x = 8,816.94 × 4,150.20
  4. Step 4: Simplify right side
    6,385.80x = 36,592,064.39
  5. Step 5: Solve for x
    x = 36,592,064.39/6,385.80
  6. Step 6: Final answer
    x = 5,730.22

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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.