Home / 3,615.70-5,418.67-1,423.84

Finding the Fourth Proportional to 3,615.70, 5,418.67 and 1,423.84

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Solution

The fourth proportional to 3,615.70, 5,418.67 and 1,423.84 is: 2,133.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.70 : 5,418.67 = 1,423.84 : x
  2. Step 2: Convert to fraction form
    3,615.70/5,418.67 = 1,423.84/x
  3. Step 3: Cross multiply
    3,615.70x = 5,418.67 × 1,423.84
  4. Step 4: Simplify right side
    3,615.70x = 7,715,319.09
  5. Step 5: Solve for x
    x = 7,715,319.09/3,615.70
  6. Step 6: Final answer
    x = 2,133.84

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1.5x scale

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.