Home / 2,214.56-3,320.64-808.32

Finding the Fourth Proportional to 2,214.56, 3,320.64 and 808.32

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Solution

The fourth proportional to 2,214.56, 3,320.64 and 808.32 is: 1,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.56 : 3,320.64 = 808.32 : x
  2. Step 2: Convert to fraction form
    2,214.56/3,320.64 = 808.32/x
  3. Step 3: Cross multiply
    2,214.56x = 3,320.64 × 808.32
  4. Step 4: Simplify right side
    2,214.56x = 2,684,139.72
  5. Step 5: Solve for x
    x = 2,684,139.72/2,214.56
  6. Step 6: Final answer
    x = 1,212.04

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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.