Home / 3,615.98-5,426.44-1,668.20

Finding the Fourth Proportional to 3,615.98, 5,426.44 and 1,668.20

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Solution

The fourth proportional to 3,615.98, 5,426.44 and 1,668.20 is: 2,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.98 : 5,426.44 = 1,668.20 : x
  2. Step 2: Convert to fraction form
    3,615.98/5,426.44 = 1,668.20/x
  3. Step 3: Cross multiply
    3,615.98x = 5,426.44 × 1,668.20
  4. Step 4: Simplify right side
    3,615.98x = 9,052,387.21
  5. Step 5: Solve for x
    x = 9,052,387.21/3,615.98
  6. Step 6: Final answer
    x = 2,503.44

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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.