Home / 2,509.08-3,765.54-1,121.88

Finding the Fourth Proportional to 2,509.08, 3,765.54 and 1,121.88

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Solution

The fourth proportional to 2,509.08, 3,765.54 and 1,121.88 is: 1,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.08 : 3,765.54 = 1,121.88 : x
  2. Step 2: Convert to fraction form
    2,509.08/3,765.54 = 1,121.88/x
  3. Step 3: Cross multiply
    2,509.08x = 3,765.54 × 1,121.88
  4. Step 4: Simplify right side
    2,509.08x = 4,224,484.02
  5. Step 5: Solve for x
    x = 4,224,484.02/2,509.08
  6. Step 6: Final answer
    x = 1,683.68

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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.