Home / 3,503.40-5,255.04-1,423.38

Finding the Fourth Proportional to 3,503.40, 5,255.04 and 1,423.38

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Solution

The fourth proportional to 3,503.40, 5,255.04 and 1,423.38 is: 2,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.40 : 5,255.04 = 1,423.38 : x
  2. Step 2: Convert to fraction form
    3,503.40/5,255.04 = 1,423.38/x
  3. Step 3: Cross multiply
    3,503.40x = 5,255.04 × 1,423.38
  4. Step 4: Simplify right side
    3,503.40x = 7,479,918.84
  5. Step 5: Solve for x
    x = 7,479,918.84/3,503.40
  6. Step 6: Final answer
    x = 2,135.05

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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.