Home / 6,785.34-10,178.28-2,105.84

Finding the Fourth Proportional to 6,785.34, 10,178.28 and 2,105.84

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Solution

The fourth proportional to 6,785.34, 10,178.28 and 2,105.84 is: 3,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,785.34 : 10,178.28 = 2,105.84 : x
  2. Step 2: Convert to fraction form
    6,785.34/10,178.28 = 2,105.84/x
  3. Step 3: Cross multiply
    6,785.34x = 10,178.28 × 2,105.84
  4. Step 4: Simplify right side
    6,785.34x = 21,433,829.16
  5. Step 5: Solve for x
    x = 21,433,829.16/6,785.34
  6. Step 6: Final answer
    x = 3,158.84

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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.