Home / 2,582.40-3,873.30-1,120.36

Finding the Fourth Proportional to 2,582.40, 3,873.30 and 1,120.36

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Solution

The fourth proportional to 2,582.40, 3,873.30 and 1,120.36 is: 1,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.40 : 3,873.30 = 1,120.36 : x
  2. Step 2: Convert to fraction form
    2,582.40/3,873.30 = 1,120.36/x
  3. Step 3: Cross multiply
    2,582.40x = 3,873.30 × 1,120.36
  4. Step 4: Simplify right side
    2,582.40x = 4,339,490.39
  5. Step 5: Solve for x
    x = 4,339,490.39/2,582.40
  6. Step 6: Final answer
    x = 1,680.41

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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.