Home / 3,520.89-5,281.07-1,669.23

Finding the Fourth Proportional to 3,520.89, 5,281.07 and 1,669.23

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Solution

The fourth proportional to 3,520.89, 5,281.07 and 1,669.23 is: 2,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.89 : 5,281.07 = 1,669.23 : x
  2. Step 2: Convert to fraction form
    3,520.89/5,281.07 = 1,669.23/x
  3. Step 3: Cross multiply
    3,520.89x = 5,281.07 × 1,669.23
  4. Step 4: Simplify right side
    3,520.89x = 8,815,312.13
  5. Step 5: Solve for x
    x = 8,815,312.13/3,520.89
  6. Step 6: Final answer
    x = 2,503.72

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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.