Home / 5,509.78-8,265.53-1,811.16

Finding the Fourth Proportional to 5,509.78, 8,265.53 and 1,811.16

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Solution

The fourth proportional to 5,509.78, 8,265.53 and 1,811.16 is: 2,717.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.78 : 8,265.53 = 1,811.16 : x
  2. Step 2: Convert to fraction form
    5,509.78/8,265.53 = 1,811.16/x
  3. Step 3: Cross multiply
    5,509.78x = 8,265.53 × 1,811.16
  4. Step 4: Simplify right side
    5,509.78x = 14,970,201.84
  5. Step 5: Solve for x
    x = 14,970,201.84/5,509.78
  6. Step 6: Final answer
    x = 2,717.02

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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.