Home / 3,485.12-5,227.66-852.64

Finding the Fourth Proportional to 3,485.12, 5,227.66 and 852.64

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Solution

The fourth proportional to 3,485.12, 5,227.66 and 852.64 is: 1,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.12 : 5,227.66 = 852.64 : x
  2. Step 2: Convert to fraction form
    3,485.12/5,227.66 = 852.64/x
  3. Step 3: Cross multiply
    3,485.12x = 5,227.66 × 852.64
  4. Step 4: Simplify right side
    3,485.12x = 4,457,312.02
  5. Step 5: Solve for x
    x = 4,457,312.02/3,485.12
  6. Step 6: Final answer
    x = 1,278.96

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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.