Home / 2,828.32-4,241.04-1,288

Finding the Fourth Proportional to 2,828.32, 4,241.04 and 1,288

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Solution

The fourth proportional to 2,828.32, 4,241.04 and 1,288 is: 1,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.32 : 4,241.04 = 1,288 : x
  2. Step 2: Convert to fraction form
    2,828.32/4,241.04 = 1,288/x
  3. Step 3: Cross multiply
    2,828.32x = 4,241.04 × 1,288
  4. Step 4: Simplify right side
    2,828.32x = 5,462,459.52
  5. Step 5: Solve for x
    x = 5,462,459.52/2,828.32
  6. Step 6: Final answer
    x = 1,931.34

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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.