Home / 2,668.29-4,004.47-2,149.55

Finding the Fourth Proportional to 2,668.29, 4,004.47 and 2,149.55

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Solution

The fourth proportional to 2,668.29, 4,004.47 and 2,149.55 is: 3,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.29 : 4,004.47 = 2,149.55 : x
  2. Step 2: Convert to fraction form
    2,668.29/4,004.47 = 2,149.55/x
  3. Step 3: Cross multiply
    2,668.29x = 4,004.47 × 2,149.55
  4. Step 4: Simplify right side
    2,668.29x = 8,607,808.49
  5. Step 5: Solve for x
    x = 8,607,808.49/2,668.29
  6. Step 6: Final answer
    x = 3,225.96

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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.