Home / 6,871.80-10,311.66-4,105.20

Finding the Fourth Proportional to 6,871.80, 10,311.66 and 4,105.20

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Solution

The fourth proportional to 6,871.80, 10,311.66 and 4,105.20 is: 6,160.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.80 : 10,311.66 = 4,105.20 : x
  2. Step 2: Convert to fraction form
    6,871.80/10,311.66 = 4,105.20/x
  3. Step 3: Cross multiply
    6,871.80x = 10,311.66 × 4,105.20
  4. Step 4: Simplify right side
    6,871.80x = 42,331,426.63
  5. Step 5: Solve for x
    x = 42,331,426.63/6,871.80
  6. Step 6: Final answer
    x = 6,160.17

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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.