Home / 3,426.61-5,135.78-1,668.98

Finding the Fourth Proportional to 3,426.61, 5,135.78 and 1,668.98

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Solution

The fourth proportional to 3,426.61, 5,135.78 and 1,668.98 is: 2,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.61 : 5,135.78 = 1,668.98 : x
  2. Step 2: Convert to fraction form
    3,426.61/5,135.78 = 1,668.98/x
  3. Step 3: Cross multiply
    3,426.61x = 5,135.78 × 1,668.98
  4. Step 4: Simplify right side
    3,426.61x = 8,571,535.45
  5. Step 5: Solve for x
    x = 8,571,535.45/3,426.61
  6. Step 6: Final answer
    x = 2,501.46

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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.