Home / 2,582.28-3,869.64-1,281.96

Finding the Fourth Proportional to 2,582.28, 3,869.64 and 1,281.96

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Solution

The fourth proportional to 2,582.28, 3,869.64 and 1,281.96 is: 1,921.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.28 : 3,869.64 = 1,281.96 : x
  2. Step 2: Convert to fraction form
    2,582.28/3,869.64 = 1,281.96/x
  3. Step 3: Cross multiply
    2,582.28x = 3,869.64 × 1,281.96
  4. Step 4: Simplify right side
    2,582.28x = 4,960,723.69
  5. Step 5: Solve for x
    x = 4,960,723.69/2,582.28
  6. Step 6: Final answer
    x = 1,921.06

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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.