Home / 2,135.10-3,202.86-836.28

Finding the Fourth Proportional to 2,135.10, 3,202.86 and 836.28

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Solution

The fourth proportional to 2,135.10, 3,202.86 and 836.28 is: 1,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.10 : 3,202.86 = 836.28 : x
  2. Step 2: Convert to fraction form
    2,135.10/3,202.86 = 836.28/x
  3. Step 3: Cross multiply
    2,135.10x = 3,202.86 × 836.28
  4. Step 4: Simplify right side
    2,135.10x = 2,678,487.76
  5. Step 5: Solve for x
    x = 2,678,487.76/2,135.10
  6. Step 6: Final answer
    x = 1,254.50

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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.