Home / 5,509.90-8,263.10-1,811.28

Finding the Fourth Proportional to 5,509.90, 8,263.10 and 1,811.28

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Solution

The fourth proportional to 5,509.90, 8,263.10 and 1,811.28 is: 2,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.90 : 8,263.10 = 1,811.28 : x
  2. Step 2: Convert to fraction form
    5,509.90/8,263.10 = 1,811.28/x
  3. Step 3: Cross multiply
    5,509.90x = 8,263.10 × 1,811.28
  4. Step 4: Simplify right side
    5,509.90x = 14,966,773.48
  5. Step 5: Solve for x
    x = 14,966,773.48/5,509.90
  6. Step 6: Final answer
    x = 2,716.34

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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.